Seiko Cal. 7131 - 603

Released in 1985, the Cal. 7131 with design code 603 was part of Seiko's domestic market collection. Powered by the 7131 caliber with 30j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-ea3d29ecdfdd]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1985

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