Seiko Cal. 6691 - 273

This Hand-Winding model from 1984 features a 40mm Titanium case. Powered by the 6691 caliber with 28j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-8a0c4e3b6469]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1984

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