Seiko Cal. 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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