Seiko Cal. 6156 - 557

This Automatic model from 1995 features a 41mm PVD Black case. Powered by the 6156 caliber with 18j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-1867e72c56e0]

Also known as: Bullhead, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1995

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