Seiko Cal. 7131 - 657

This Solar model from 1993 features a 35mm PVD Black case. Powered by the 7131 caliber with 21j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-8712cf928f1d]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1993

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