Seiko Cal. 5644 - 251

This Hand-Winding model from 1978 features a 41mm Stainless Steel case. Powered by the 5644 caliber with 33j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-b2a96350d0bc]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1978

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