Seiko Cal. 5231 - 648

The 5231-648 is a sought-after Solar piece from Seiko's golden era. Powered by the 5231 caliber with 26j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-d3300b62ceb5]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1969

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