Seiko Cal. 3878 - 478

This Spring Drive model from 1966 features a 41mm PVD Black case. Powered by the 3878 caliber with 33j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-331724cc5c65]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1966

Related Models

• Seiko 4498-731
• Seiko 6322-561
• Seiko 5673-437
• Seiko 7149-419
• Seiko 5281-878
• Seiko 5621-948
• Seiko 0733-427
• Seiko 7029-445
• Seiko 7186-111
• Seiko 7077-789
• Seiko 5662-388
• Seiko 0748-967