Seiko Cal. 4438 - 281

This Hand-Winding model from 1969 features a 39mm Two-Tone case. Powered by the 4438 caliber with 26j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-9191cc603a1f]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1969

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