Seiko Cal. 3878 - 311

This Hand-Winding model from 1977 features a 45mm PVD Black case. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-d8e19006a697]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1977

Related Models

• Seiko 7183-114
• Seiko 5657-599
• Seiko 0739-960
• Seiko 7162-481
• Seiko 7052-262
• Seiko 0791-447
• Seiko 7138-319
• Seiko 6247-335
• Seiko 6320-996
• Seiko 6393-729
• Seiko 6294-915
• Seiko 6150-903