The China Caliber

Wear what you like.

Chinese watches, bought with my own money and measured on my own desk. What they get right, who actually makes them, and what they are actually worth.

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San Martin SN0109-G

BrandSan Martin
ReferenceSN0109-G
Size39mm
MovementSeiko NH34
CategoryChinese

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An automatic GMT in the style of the Tudor Black Bay Pro, with a 39mm case, Top Hat sapphire crystal, and the Seiko NH34 GMT movement.

Technical Specifications

SpecificationValue
Case Diameter39.0 mm (Bezel: 39.8 mm)
Thickness13.0 mm
Lug-to-Lug48.5 mm
Lug Width20.0 mm
MovementSeiko Caliber NH34 (Automatic GMT, office GMT, hacking)
Jewels24 Jewels
Frequency21,600 vph (3 Hz)
Power Reserve~41 hours
Case Material316L Stainless Steel
CrystalTop Hat Sapphire Crystal with AR coating
Water Resistance100 m (10 ATM)

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