Seiko Cal. 6691 - 501

This Automatic model from 1992 features a 35mm Titanium case. Powered by the 6691 caliber with 35j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-f2eb60ead88d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1992

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