Seiko Cal. 4451 - 637

This Quartz model from 1988 features a 34mm PVD Black case. Powered by the 4451 caliber with 24j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-d317942b1f89]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1988

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