Seiko Cal. 5651 - 866

The 5651-866 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-1d2325a446f9]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1978

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