Seiko Cal. 5691 - 661

The 5691-661 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-c2ece142a7c3]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

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