Seiko Cal. 6689 - 761

This Spring Drive model from 1986 features a 41mm Two-Tone case. Powered by the 6689 caliber with 20j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-2a31b2a511bf]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1986

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