Seiko Cal. 5644 - 308

This Spring Drive model from 1966 features a 39mm Stainless Steel case. Powered by the 5644 caliber with 19j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-baa54358c787]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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