Manufacturer Seiko Caliber Number 5D44, 5D44A Type Kinetic Diameter 30.0mm Casing Diameter 28.0mm Thickness 6.25mm Jewels 12 Capacitor MT920 Manganese...
Brand Junghans Caliber Number J645.85 Base Caliber Ronda 3520.D Type Quartz Size 10 1/2”’ x 11 1/2”’ Diameter 26.2mm Thickness...
Manufacturer Miyota (Citizen) Caliber Number JS06 Type Quartz Diameter 12.5”’ (28.2mm x 26mm) Casing Diameter 27.6mm x 26mm Height 4.30mm...
Manufacturer Seiko Caliber Number 9T82, 9T82A Type Kinetic Diameter Unknown Thickness Unknown Jewels 38 Capacitor Unknown Frequency 32,768 Hz (cycles...
Manufacturer Seiko Caliber Number 7T92 / 7T92A Type Quartz Diameter 12”’ (24.1mm x 27.6mm) Thickness 3.3mm Jewels 0 Battery Cell...
Manufacturer Miyota (Citizen) Caliber Number 0S30 (sometimes typed as OS3O) Type Quartz Diameter 13.50”’ (30.80mm) Height 4.13mm Jewels 0 Battery...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD51B Type Quartz Diameter 12 3/4”’ (29.5mm) 26mm between 3:00-9:00 Casing...
Manufacturer Ronda Caliber Number Z60 Type Quartz Diameter 13 1/4”’ (30.60mm) Casing Diameter 30mm Height 4.6mm Battery Number 395 (1.5...
Manufacturer Miyota (Citizen) Caliber Number 6S50 (sometimes typed as 6S5O) Type Quartz Replaces Caliber Unknown, please add in the comments...
Manufacturer Seiko Instruments Inc. / SII / Hattori / TMI Caliber Number VK64, VK64A Type Quartz (mecaquartz) Diameter 13 1/2”’...
Manufacturer ISA Caliber Number 8173-0000, 8173A Type Quartz Diameter 11 1/2”’ (25.6mm) Height 4.60mm Battery Cell Number 395 / 399...
Brand Graham Caliber Number G1749 Base Caliber ETA/Valjoux 7750 Movement Type Automatic Jewels 25 Diameter 13 1/4”’ (30mm) Height 7.9mm...
Manufacturer Seiko Caliber Number 7T62 / 7T62A Type Quartz Diameter 12”’ (24.1mm x 27.6mm) Thickness 3.3mm Jewels 0 Battery Cell...
Manufacturer Montblanc Caliber Number 4810 503 Base Caliber ETA / Valjoux 7753 Movement Type Automatic Jewels 27 Power Reserve 48...
What is a Flyback Chronograph? In a traditional chronograph watch, the button sequence is top (start), top (stop), bottom (reset)....
Manufacturer Heuer Caliber Number 107 Type Quartz Battery Cell Number 361/362 (SR721SW) Jewels 0 Functions Time, date, day, chronograph, split...
Manufacturer Miyota (Citizen) Caliber Number 2415 Type Quartz Replaces Caliber Citizen 0510 Size 13.50”’ (30.80mm) diameter x 4.35mm thick Battery...
Manufacturer ISA Caliber Number 9003/7301 Type Quartz Diameter 14”’ (31.80mm x 6.20mm thick) Battery Cell Number CR2016 Hand Sizes 150/90/20...
Brand Shinola Caliber Number Argonite 515.24H Base Caliber Ronda 515.24H Line Powertech 500 Type Quartz Size 11 1/2”’ x 3mm...
Manufacturer ETA / Valjoux Caliber Number 7753 Movement Type Automatic Jewels 27 Power Reserve 48 hours Diameter 13 1/4”’ (30.00mm)...
Manufacturer Miyota Caliber Number 1L45 Type Quartz Replaces Citizen 1045A / 1045 Size 6 3/4”’ x 8”’ (14.8mm x 18.2mm)...
Manufacturer Zenith Caliber Number 4000SC Base Caliber Zenith El Primero 400 Vibrations Per Hour 36,000 bph Diameter 13”’ (30mm) Height...
Brand Seiko Caliber Number 5R65 Movement Type Automatic Jewels 30 Diameter 30mm Height 5.1mm Power Reserve 70+ hours Frequency 32,768...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD53 Type Quartz Size 12 3/4”’ (29.5mm) x 4.57mm thick Battery...
Brand Ronda Caliber Number 519 Line Powertech 500 Type Quartz Size 11 1/2”’ x 3mm thick Diameter 26.20mm Battery Cell...
Brand Hamilton Caliber Number H-21 Base Caliber ETA / Valjoux 7750 Movement Type Automatic Jewels 25 Power Reserve 60 hours...
Brand Ronda Caliber Number Ronda 6004.B Type Quartz Size 11 1/2”’ x 3.30mm thick Diameter 26mm Battery Cell Number 371/370...
Manufacturer ETA Caliber Number 251.471 Replacement NA Type Quartz, chronograph Diameter 10 1/2”’ (23mm) Thickness 4.70mm Battery Cell Number 394...
Manufacturer Citizen Caliber Number 1045A / 1045 Type Quartz Replacement Caliber Miyota 1L45 Size 6 3/4”’ x 8”’ (14.8mm x...
Brand Ronda Caliber Number Ronda 3520.D Type Quartz Size 10 1/2”’ x 11 1/2”’ Diameter 26.2mm Thickness 4.9mm Battery Cell...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK63, VK63A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.80mm x 29.10mm)...
Manufacturer ISA Caliber Number 8176-2050 Type Quartz Diameter 11 1/2”’ (25.6mm) x 3.70mm thick (5.7mm total height) Battery Cell Number...
Brand Omega Caliber Number 910 Movement Type Manual wind Base Caliber Omega 860 Jewels 17 Power Reserve 44 hours Vibrations...
Brand IWC Caliber Number 79350 Base Caliber ETA/Valjoux 7750 Movement Type Automatic Jewels 31 Power Reserve 44 hours Vibrations Per...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK67, VK67A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Brand Sjöö Sandström Manufacturer ETA / Valjoux Caliber Number SS G4 Base Caliber ETA/Valjoux 7754 (top grade) Movement Type Automatic...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK83, VK83A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Brand Ronda Caliber Number 8040.N, 8040, 8040N Line Mastertech 8000 Type Quartz Diameter 15”’ (34.60mm) Thickness 5.6mm Battery Cell Number...
Manufacturer ETA / Valjoux Caliber Number 7754 Movement Type Automatic Jewels 25 Power Reserve 44 hours Diameter 13 1/4”’ (30.00mm)...
Brand ETA / Valjoux Caliber Number 7760 Movement Type Manual wind, mechanical Diameter 30mm Jewels 17 Power Reserve 48 hours...
Brand Ronda Caliber Number 515.24H Base Caliber 515 Line Powertech 500 Type Quartz Size 11 1/2”’ x 3mm thick Diameter...
Manufacturer ISA Caliber Number 8172-220, 8172A Type Quartz Diameter 11 1/2”’ (25.6mm) x 4.20mm thick Battery Cell Number 395 Stem...
Brand ETA / Valjoux Caliber Number 7751 Base Caliber ETA 7750 Movement Type Automatic Diameter 13 1/4”’ (30.00mm) Thickness 7.90mm...
Manufacturer Miyota (Citizen) Caliber Number 3S10 (aka 3510) Type Quartz Size 13 1/2”’ (30.48mm) x 4.20mm thick Battery Cell Number...
Brand Omega Caliber Number 3304 Base Caliber ETA/Valjoux 7750 Movement Type Automatic Jewels 27 Power Reserve 48 hours Vibrations Per...
Brand Ronda Caliber Number 5040.D, 5040D Type Quartz Diameter 12 1/2”’ (28.60mm) Height 4.40mm thick Battery Cell Number 395 Claimed...
Brand Shinola Caliber Number Argonite 1069 Base Caliber Ronda 1069 Type Quartz Diameter 6 3/4”’ x 8”’ (15.3mm x 17.8mm)...
Manufacturer Miyota (Citizen) Caliber Number 0S20 (sometimes typed as OS20) Type Quartz Replaces Caliber Unknown, please add in the comments...