Seiko Cal. 6641 - 955

The 6641-955 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-38d3d041fb8a]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

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