Seiko Cal. 5261 - 543

This Spring Drive model from 1968 features a 42mm Stainless Steel case. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-793990ce91c8]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1968

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