Seiko Cal. 6650 - 580

The 6650-580 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-1f3eb1874cfa]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1976

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