Seiko Cal. 6687 - 181

This Hand-Winding model from 1974 features a 34mm PVD Black case. With its 20mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-6e58aaee4046]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1974

Related Models

• Seiko 6385-194
• Seiko 6177-983
• Seiko 6163-535
• Seiko 3826-372
• Seiko 7145-285
• Seiko 4565-849
• Seiko 6196-553
• Seiko 5236-535
• Seiko 4512-155
• Seiko 6314-894
• Seiko 6691-888
• Seiko 6167-353