Seiko Cal. 6641 - 677

The Seiko 6641-677 represents an important milestone in Seiko's 1999 lineup. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-bcb2b62b4467]

Also known as: Samurai

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1999

Related Models

• Seiko 7013-595
• Seiko 0765-165
• Seiko 5688-404
• Seiko 0763-474
• Seiko 3832-736
• Seiko 5298-748
• Seiko 3859-447
• Seiko 3840-671
• Seiko 7152-675
• Seiko 7149-174
• Seiko 6365-518
• Seiko 6298-378