Seiko Cal. 3818 - 105

This Spring Drive model from 1972 features a 38mm Hardlex-Coated Steel case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-652ffe53bbd7]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1972

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