Seiko Cal. 6318 - 618

This Hand-Winding model from 1977 features a 36mm Hardlex-Coated Steel case. Powered by the 6318 caliber with 33j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-67dc64e07402]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1977

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