Seiko Cal. 7131 - 865

Released in 1989, the Cal. 7131 with design code 865 was part of Seiko's domestic market collection. Powered by the 7131 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-b2a2eb336f4d]

Also known as: UFO, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1989

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