Seiko Cal. 4438 - 726

This Spring Drive model from 1999 features a 39mm Two-Tone case. Powered by the 4438 caliber with 20j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f8e94e1de3f3]

Also known as: Shogun, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1999

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