Seiko Cal. 6156 - 397

This Spring Drive model from 1997 features a 34mm PVD Black case. Powered by the 6156 caliber with 17j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-9e3dc4c05a94]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1997

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