Seiko Cal. 6227 - 637

Seiko 6227-637

This Hand-Winding model from 1976 features a 40mm Stainless Steel case. Powered by the 6227 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-ad6314a97d62]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
8.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
170m
Dial Color
Burgundy
Jewels
31j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1976

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seikata-wm-ad6314a97d62