Seiko Cal. 7140 - 191

This Hand-Winding model from 1989 features a 37mm Two-Tone case. Powered by the 7140 caliber with 20j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-ce8fd24b1844]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1989

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