Seiko Cal. 3818 - 788

This Automatic model from 1965 features a 39mm Hardlex-Coated Steel case. Powered by the 3818 caliber with 17j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-62eefebb847a]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1965

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