Seiko Cal. 6641 - 431

This Hand-Winding model from 1985 features a 40mm Titanium case. Powered by the 6641 caliber with 29j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-76771fad66ac]

Also known as: Shogun, Pogue

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1985

Related Models

• Seiko 4579-819
• Seiko 4569-235
• Seiko 6672-101
• Seiko 6287-261
• Seiko 3843-691
• Seiko 6141-401
• Seiko 4591-847
• Seiko 4451-845
• Seiko 0792-492
• Seiko 6224-425
• Seiko 0717-720
• Seiko 5217-834