Seiko Cal. 5645 - 131

This Quartz model from 1997 features a 43mm PVD Black case. Powered by the 5645 caliber with 36j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-005c98b14e6a]

Also known as: Monster, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1997

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