Seiko Cal. 6155 - 457

This Automatic model from 1977 features a 40mm PVD Black case. Powered by the 6155 caliber with 25j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-ccdcf4c7330d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1977

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