Seiko Cal. 6178 - 539

This Automatic model from 1980 features a 40mm PVD Black case. Powered by the 6178 caliber with 20j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-93f21b42206f]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1980

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