Seiko Cal. 7131 - 335

This Spring Drive model from 1991 features a 46mm Hardlex-Coated Steel case. Powered by the 7131 caliber with 27j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-8a421e807f62]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1991

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