Seiko Cal. 5637 - 501

Seiko 5637-501

This Quartz model from 1979 features a 45mm Stainless Steel case. Powered by the 5637 caliber with 36j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-ade513f993e7]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
120m
Dial Color
Silver
Jewels
36j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1979

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seikata-wm-ade513f993e7