Seiko Cal. 4445 - 631

This Hand-Winding model from 1970 features a 38mm Titanium case. Powered by the 4445 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-9732ee795c8e]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1970

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