Seiko Cal. 6117 - 903

The Seiko 6117-903 represents an important milestone in Seiko's 1974 lineup. Powered by the 6117 caliber with 21j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-5844f3060d7a]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1974

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