Seiko Cal. 6641 - 338

The 6641-338 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6641 caliber with 33j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-3d551cc416f3]

Also known as: Pogue, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1990

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