Seiko Cal. 6641 - 663

The 6641-663 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-fb05bb9e3cf4]

Also known as: Pogue, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1967

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