Seiko Cal. 5231 - 948

The 5231-948 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5231 caliber with 21j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-50884f482927]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1996

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