Seiko Cal. 5286 - 631

Seiko 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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