Seiko Cal. 4426 - 140

This Spring Drive model from 1965 features a 34mm Stainless Steel case. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-28a9b71f1c4f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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