Seiko Cal. 5660 - 609

The 5660-609 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-3090cb601aaa]

Also known as: Sea Horse, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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