Seiko Cal. 7148 - 387

This Spring Drive model from 1977 features a 42mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-113400f88681]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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