Seiko Cal. 5637 - 546

This Hand-Winding model from 1973 features a 36mm Stainless Steel case. Powered by the 5637 caliber with 35j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-1dbd90048350]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1973

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