Seiko Cal. 7140 - 100

This Automatic model from 1977 features a 35mm Two-Tone case. Powered by the 7140 caliber with 17j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-6522b7a88061]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1977

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