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Grand Seiko

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Grand Seiko T Zero Constant Force T0

Grand Seiko Caliber T0 (T-Zero)

Manufacturer Grand Seiko Caliber Number T-Zero (T0) Movement Type Tourbillon, manual-wind In-House? Yes Diameter 36mm Thickness 8.22mm (total) Jewels 43...
MechanicalOther
40
Seiko 8l55a

Seiko Caliber 8L55

Manufacturer Seiko Caliber Number 8L55, 8L55A Movement Type Automatic In-House? Yes Diameter (needs confirmed) Casing Diameter (needs confirmed) Height (needs...
Automatic
25

Grand Seiko Caliber 9S86

Grand Seiko caliber 9S86 automatic luxury watch movement. For now, please check 9S85. Full caliber listing coming soon....
Automatic
0

Seiko Caliber 8J55

Vintage Grand Seiko quartz powered watch movement. Full caliber listing coming soon....
Quartz
0
Seiko Caliber 5740

Seiko Caliber 5740C

Brand Seiko Caliber Number 5740C Base Caliber 5740 Movement Type Manual wind, mechanical Jewels 23 Vibrations Per Hour 36,000 bph...
Mechanical
5
How to find Grand Seiko Caliber Numbers

How to Find Grand Seiko Caliber Numbers

According to Grand Seiko: The caliber number is a four-digit number that indicates the model of a movement (mechanical part...
Guides
3
Seiko SII TMI NH25A vs NH35A Differences Compared

Seiko Caliber NH25A VS. NH35A

What is the difference between Seiko caliber NH25 and NH35? There are some differences between these overall similar movements. The...
Automatic
6
Grand Seiko Caliber 9S85 Hi-Beat Automatic Movement

Grand Seiko Caliber 9S85

Brand Grand Seiko Caliber Number 9S85 / 9S85A Movement Type Automatic (Hi-Beat) Jewels 37 Power Reserve 55 hours Vibrations Per...
Automatic
4

Grand Seiko Caliber 9S65

Brand Seiko Caliber Number 9S65 / 9S65A Movement Type Automatic Jewels 35 Power Reserve 72 hours Vibrations Per Hour 28,800...
Automatic
4
Grand Seiko 9F62A

Grand Seiko Caliber 9F62A

Manufacturer Seiko Caliber Number 9F62, 9F62A In-House Yes Accuracy +/-10 seconds per year Battery Number 371/370/SR920S,SR920SW Power Reserve 3 year...
Quartz
5
Grand Seiko caliber 9R86 in Spring Drive model SBGC005

Seiko Caliber 9R86

Seiko caliber 9R86 found in the Grand Seiko Spring Drive model SBGC005. 50 jewels and consisting of 416 parts. Made in Japan.
Automatic
2
Seiko Caliber 8r28

Seiko Caliber 8R28

Seiko caliber 8R28 found in an Ananta model SRQ011. This automatic chronograph movement has 34 jewels, power reserve of 45+ hours, consists of 292 parts, and beats at 28,800 vph. It has a column wheel and vertical clutch. Made in Japan.
Automatic
4
Seiko Caliber 9s66

Grand Seiko Caliber 9S66

Seiko in-house caliber 9S66 found in a Grand Seiko GMT Limited Edition. This caliber is essentially an upgrade from GS cal. 9S56 which offered a lower 48 hr power reserve.
Automatic
2
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Trending Calibers

Tudor T603 Sellita Sw240 1

Tudor Caliber T603

Automatic
9
Eta Caliber 2813

ETA Caliber 2813?

Automatic
4
Avi 8 Watches Airplane Rotor Miyota 82

Custom Airplane Rotor on a Miyota 8218 in an AVI-8 Watch

Automatic
5
Orient Caliber F6724

Orient Caliber F6724

Automatic
5


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Caliber Corner Logo Update 020118
  • Home
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