Seiko Cal. 6318 - 537

This Automatic model from 1968 features a 45mm Stainless Steel case. Powered by the 6318 caliber with 25j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-c7f256b89589]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1968

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