Seiko Cal. 6634 - 237

Seiko 6634-237

The Seiko 6634-237 represents an important milestone in Seiko's 1977 lineup. Powered by the 6634 caliber with 35j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-5d68bb5b078e]

Also known as: Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
100m
Dial Color
White
Jewels
35j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1977

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