Seiko Cal. 6642 - 828

This Hand-Winding model from 1986 features a 35mm Titanium case. Powered by the 6642 caliber with 26j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-bb3dcddea9ba]

Also known as: UFO, Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1986

Related Models

• Seiko 6183-755
• Seiko 6135-719
• Seiko 7146-307
• Seiko 4454-874
• Seiko 6283-823
• Seiko 5664-377
• Seiko 3815-577
• Seiko 5661-813
• Seiko 6193-519
• Seiko 6293-497
• Seiko 4427-392
• Seiko 5252-821