Seiko Cal. 6641 - 870

The 6641-870 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-633288655f65]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1990

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