Seiko Cal. 6642 - 812

The Seiko 6642-812 represents an important milestone in Seiko's 1991 lineup. Powered by the 6642 caliber with 28j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e2b2187fb996]

Also known as: Sea Horse, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1991

Related Models

• Seiko 3878-282
• Seiko 0735-927
• Seiko 6337-325
• Seiko 6142-976
• Seiko 6363-217
• Seiko 6693-452
• Seiko 3884-219
• Seiko 6215-444
• Seiko 7025-490
• Seiko 3826-247
• Seiko 4428-105
• Seiko 7024-916