Seiko Cal. 6635 - 992

This Automatic model from 1975 features a 35mm PVD Black case. Powered by the 6635 caliber with 17j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-a8d2ddf7aa24]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1975

Related Models

• Seiko 4584-964
• Seiko 3889-163
• Seiko 7046-751
• Seiko 6283-510
• Seiko 4421-805
• Seiko 7022-829
• Seiko 7095-101
• Seiko 4510-130
• Seiko 3875-366
• Seiko 3860-141
• Seiko 7047-939
• Seiko 6387-953