Seiko Cal. 6661 - 381

This Automatic model from 1973 features a 41mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-0051f80c20d1]

Also known as: Turtle, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1973

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