Seiko Cal. 7140 - 681

The 7140-681 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7140 caliber with 34j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-ea7d3f170b15]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1972

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