Seiko Cal. 5231 - 261

The Seiko 5231-261 represents an important milestone in Seiko's 1969 lineup. Powered by the 5231 caliber with 30j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-ecdb276885a5]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1969

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