Seiko Cal. 6387 - 448

This Hand-Winding model from 1968 features a 34mm Hardlex-Coated Steel case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-958906b6d792]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1968

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