Seiko Cal. 6318 - 789

This Automatic model from 1975 features a 45mm Two-Tone case. Powered by the 6318 caliber with 30j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-e23ed3c91a38]

Also known as: Helmet, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

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