Seiko Cal. 6178 - 772

This Spring Drive model from 1987 features a 40mm Titanium case. Powered by the 6178 caliber with 35j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-a192cf2adc94]

Also known as: Tuna, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1987

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