Seiko Cal. 5688 - 273

This Automatic model from 1984 features a 45mm PVD Black case. Powered by the 5688 caliber with 25j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-7e7df0864ca8]

Also known as: Monster, Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1984

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