Seiko Cal. 6635 - 383

The Seiko 6635-383 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-20599682319b]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

Related Models

• Seiko 3866-156
• Seiko 4464-632
• Seiko 7149-956
• Seiko 5664-578
• Seiko 5279-602
• Seiko 5248-170
• Seiko 4578-955
• Seiko 4463-289
• Seiko 4419-253
• Seiko 5228-175
• Seiko 7171-355
• Seiko 7083-132