Seiko Cal. 6180 - 394

This Hand-Winding model from 1977 features a 37mm PVD Black case. Powered by the 6180 caliber with 22j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-bc098bc8c3d0]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1977

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