Seiko Cal. 6624 - 251

This Spring Drive model from 1966 features a 40mm Hardlex-Coated Steel case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-de26602eb08d]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1966

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