Seiko Cal. 5631 - 754

The 5631-754 is a sought-after Solar piece from Seiko's golden era. Powered by the 5631 caliber with 22j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-fdb1edfcb37d]

Also known as: Samurai, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1976

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