Seiko Cal. 6641 - 890

The Seiko 6641-890 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-105d6c1ffab6]

Also known as: Tuna, Pogue

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1965

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