Seiko Cal. 5231 - 339

The 5231-339 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5231 caliber with 22j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-9d39fc6aefb7]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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