Seiko Cal. 6171 - 536

This Automatic model from 1981 features a 40mm PVD Black case. Powered by the 6171 caliber with 25j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-93843d1ea617]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1981

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