Seiko Cal. 6399 - 641

The Seiko 6399-641 represents an important milestone in Seiko's 1970 lineup. Powered by the 6399 caliber with 34j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-615553ff1c97]

Also known as: Silverwave, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1970

Related Models

• Seiko 6660-108
• Seiko 7096-757
• Seiko 6668-468
• Seiko 4491-808
• Seiko 4429-419
• Seiko 0720-614
• Seiko 7115-228
• Seiko 6245-458
• Seiko 7198-942
• Seiko 6631-525
• Seiko 6267-736
• Seiko 5645-612