Seiko Cal. 6313 - 557

This Spring Drive model from 1967 features a 41mm Gold-Plated case. Powered by the 6313 caliber with 30j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-784613915fb6]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

Related Models

• Seiko 6263-353
• Seiko 5255-737
• Seiko 6632-583
• Seiko 6163-938
• Seiko 7072-691
• Seiko 6677-512
• Seiko 4577-380
• Seiko 6690-547
• Seiko 4492-120
• Seiko 6149-152
• Seiko 5261-423
• Seiko 4561-860