Seiko Cal. 5643 - 747

This Spring Drive model from 1985 features a 40mm PVD Black case. Powered by the 5643 caliber with 35j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-0c9e1bc77451]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1985

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