Seiko Cal. 7140 - 757

The Seiko 7140-757 represents an important milestone in Seiko's 1983 lineup. Powered by the 7140 caliber with 33j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-a18b9bbc1b84]

Also known as: Tuna, Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1983

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