Seiko Cal. 6642 - 415

This Hand-Winding model from 1977 features a 34mm Hardlex-Coated Steel case. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-345a34354f88]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1977

Related Models

• Seiko 0736-197
• Seiko 6610-678
• Seiko 7185-640
• Seiko 6369-203
• Seiko 3838-543
• Seiko 6345-509
• Seiko 5639-708
• Seiko 4570-722
• Seiko 3857-734
• Seiko 6692-112
• Seiko 3873-508
• Seiko 5639-839