Seiko Cal. 5286 - 631

The 5286-631 is a sought-after Solar piece from Seiko's golden era. Powered by the 5286 caliber with 36j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-04bffa7fae3d]

Also known as: UFO, Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1983

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