Seiko Cal. 6641 - 313

The Seiko 6641-313 represents an important milestone in Seiko's 1989 lineup. Powered by the 6641 caliber with 31j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-7bf8c8a9fba5]

Also known as: Shogun, Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1989

Related Models

• Seiko 6220-211
• Seiko 5637-150
• Seiko 3850-209
• Seiko 6138-670
• Seiko 6160-722
• Seiko 3816-720
• Seiko 3810-599
• Seiko 4587-314
• Seiko 5647-280
• Seiko 5226-658
• Seiko 7023-304
• Seiko 5220-558