Seiko Cal. 4438 - 177

This Spring Drive model from 1969 features a 34mm PVD Black case. Powered by the 4438 caliber with 22j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-cf6204b7baff]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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