Seiko Cal. 5666 - 780

The 5666-780 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-24aa52dd78a8]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1980

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