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Unitas 6503

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Eta Unitas 6503

ETA/Unitas Caliber 6503

Manufacturer ETA/Unitas Caliber Number 6503 Base Caliber ETA/Unitas 6497 Movement Type Manual wind Size (lignes) 16.5”’ Diameter 36.6mm Height 5.0mm...
Mechanical
8

Seiko 8 10 20

Trending Calibers

Seiko Caliber 6r35

Seiko Caliber 6R35A

Automatic
25
Seiko Caliber 4r36a Drawing

Seiko Caliber 4R57

Automatic
17
Titoni Caliber T10

Titoni Caliber T10

Automatic
26
Grand Seiko T Zero Constant Force T0

Grand Seiko Caliber T0 (T-Zero)

MechanicalOther
39
Seiko Caliber Nh71a Drawings

Seiko (SII) Caliber NH71A

Automatic
12

Featured Comments

4

Titoni Caliber T10
I take back calling you a troll twice, but your initial comment was attacking this ...
  • November 16, 2020 by Tim
4

Titoni Caliber T10
Your math is only partially correct because you’re neglecting that the balance wheel is not ...
  • November 16, 2020 by Tim
4

Titoni Caliber T10
You are spreading false information. 28,800 is 4 Hz. Even Titoni says it! https://www.titoni.ch/en/swiss-watchmaking/manufacture-calibre-t10.html so ...
  • November 15, 2020 by Tim
3

Titoni Caliber T10
I am pretty sure this caliber is only in the Line 1919 models that they ...
  • November 16, 2020 by Steve Hampton
2

Titoni Caliber T10
This thread had me pulling out the calculator and questioning everything I learned about watch ...
  • November 16, 2020 by Steve Hampton

Active Comment Threads

6
Don’t let the ETA stamp fool you. This G10 quartz movement is total unserviceable welded ...
  • pwwfnz
  • March 8, 2019
6
I think that my Breitling Colt GMT has this movement. The GMT hand is out ...
  • Timothy Rogers
  • March 18, 2018
5
I wish more brands would use this movement. So far I can’t find any, even ...
  • Frederico
  • March 25, 2020
4
Irony of Ironies is that the SW200 now powers many Eterna watches. Eterna founded ETA ...
  • Yankeexpress
  • November 1, 2016
4
How Swiss is this really? Like Swiss Swiss or China Swiss?
  • Josh
  • July 22, 2019

Top Posts

354

Seiko (SII) Caliber NH35A
Manufacturer Seiko Caliber Number NH35A (aka NH35) Movement Type Automatic Lignes 12''' Diameter 27.40mm (outside) ...
  • Caliber Corner
  • July 13, 2014
119

Sellita Caliber SW200
Manufacturer Sellita Caliber Number SW200, SW-200 Linges 11.5''' Diameter 25.6mm Height 4.60mm thick Vibrations Per ...
  • Caliber Corner
  • July 8, 2016
112

ETA Caliber 2893-2
Manufacturer ETA Caliber Number 2893-2 Vibrations Per Hour 28,800 bph Diameter 11 1/2''' (25.60mm) Height ...
  • Caliber Corner
  • October 21, 2016
88

Seiko Caliber 7S26
Manufacturer Seiko Caliber Number 7S26 Movement Type Automatic Diameter 27.4mm Casing Diameter 27mm Height 4.8mm ...
  • Caliber Corner
  • January 11, 2017
87

ETA Caliber 2824-2
Manufacturer ETA Caliber Number 2824-2 Vibrations Per Hour 28,800 bph Diameter 25.6mm Thickness 4.6mm Power ...
  • Caliber Corner
  • May 20, 2016

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Caliber Corner Logo Update 020118
  • Home
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