Seiko Cal. 0728 - 357

This Spring Drive model from 1970 features a 35mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-387cf58b6bf8]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1970

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