Seiko Cal. 5243 - 631

The Seiko 5243-631 represents an important milestone in Seiko's 1972 lineup. Powered by the 5243 caliber with 36j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-eafae28890b6]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1972

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