Seiko Cal. 5661 - 237

The 5661-237 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-ea5ed6614734]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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