Seiko Cal. 6661 - 366

This Hand-Winding model from 1967 features a 37mm Gold-Plated case. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-d783191be469]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1967

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