Seiko Cal. 3818 - 717

The Seiko 3818-717 represents an important milestone in Seiko's 1980 lineup. Powered by the 3818 caliber with 35j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-db06acd1f3c5]

Also known as: Helmet, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1980

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