This movement enables the watch to receive GPS signals from the Global Positioning System satellites. That signal sends the precise time and date to the watch based on the location of the wearer and information from the atomic clock which is accurate within 1 sec every 100,000 or so yrs.
Japanese
Brand Miyota (Citizen) Caliber Number 8215 Movement Type Automatic, self-winding mechanical Linges 11.5”’ Diameter 26mm Height 5.67mm (7.4 overall) Min...
Manufacturer Miyota Caliber Number 0S10 Type Quartz Replaces Caliber Citizen 0510 Lignes 13.50”’ Diameter 30.8mm Height 4.13mm thickness Battery Number...
Brand Miyota (Citizen) Caliber Number 9015 Movement Type Automatic, self-winding mechanical Jewels 24 Linges 11.5”’ Diameter 26mm Height 3.9mm thick...
Manufacturer Miyota (Citizen) Caliber Number 0S21 aka OS21 Type Quartz Replaces Caliber Citizen 0510 Diameter 13.50”’ (30.80mm) Height 5.10mm Battery...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD54B Movement Type Quartz Lignes 12 3/4”’ Diameter 29.5mm Thickness 3.97mm...
Manufacturer Miyota (Citizen) Caliber Number 0S25 Type Quartz Replaces Caliber Citizen 0510 Size 13.50”’ (30.80mm) diameter x 5.10mm thick Battery...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD55B Type Quartz Size Unknown (Please add to the comments below)...
Manufacturer Miyota (Citizen) Caliber Number 6S20 Type Quartz Replaces Caliber Citizen 0510 Size 15”’ (34.60mm) diameter x 4.90mm thick Battery...
Manufacturer S. Epson Corp. (Seiko) Caliber Number YM62A, YM62 Movement Type Quartz Lignes 12”’ x 10.5”’ Diameter 27.6mm x 24.1mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD53B Type Quartz Size 12.75”’ (29.5mm) Height 4.57mm thick Jewels 0...
Brand Miyota (Citizen) Caliber Number 8218 Base Caliber Miyota 8215 Movement Type Automatic Lignes 11 1/2”’ Diameter 26mm Casing Diameter...
Manufacturer Miyota (Citizen) Caliber Number 2115 Type Quartz Similar Caliber 2105 Lignes 10.50”’ Diameter 23.7mm Height 4.15mm thick Jewels 0...
Manufacturer Miyota (Citizen) Caliber Number 0S20 (sometimes typed as OS20) Type Quartz Replaces Caliber Unknown, please add in the comments...
Brand Miyota (Citizen) Caliber Number 821A Base Caliber Miyota 8215 Movement Type Automatic Lignes 11.5”’ Diameter 26mm Height 5.67mm Jewels...
Manufacturer Miyota (Citizen) Caliber Number 3S10 (aka 3510) Type Quartz Size 13 1/2”’ (30.48mm) x 4.20mm thick Battery Cell Number...
Manufacturer Seiko Time Corp. Caliber Number 7S26 Replaced By 4R36 Movement Type Automatic, self-winding mechanical In-House? Yes Diameter 27.4mm Casing...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK83, VK83A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Brand Miyota (Citizen) Caliber Number 8217 Base Caliber Miyota 8215 Movement Type Automatic Lignes 11 1/2”’ Diameter 26mm Height 5.67mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK67, VK67A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Manufacturer S. Epson Corp. (Seiko/Hatori) Caliber Number Y121, Y121E Type Quartz Lignes 6 3/4”’ x 8”’ Diameter 15.3mm x 18.2mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number PC21S Type Quartz Size 18.5mm x 3.15mm thick (overall height 4.8mm)...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK63, VK63A Movement Type Quartz (mecaquartz) Lignes 13 1/2”’ Diameter 30.80mm...
Brand Seiko Caliber Number 8B43 Movement Type Solar Powered (Quartz) Jewels Unkown Crystal Oscillator Frequency 32,768 Hz (cycles per second)...
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Lum-Tec gave up trying to fix my C2 with this movement, now I'm trying to…
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Es más preciso de lo que anuncia. Unos 12 segundos se adelanta al día, para…
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Thank you, Arash. Listing updated.
Active Caliber Listings
Tengo un mondaine big date que al cambiarle la batería dejo de funcionar la verdad…
My apologies, I missed that somehow.
Hi Gary L, you are correct. Please see the SW300-1 here and the SW330-1 here.
Hello everyone, I think the SW300 is Sellita’s version of the ETA 2892-A2. The GMT…
As far as I know, this caliber was produced in the mid-eighties to the mid-nineties