Seiko Cal. 6377 - 220

This Hand-Winding model from 1979 features a 38mm Gold-Plated case. Powered by the 6377 caliber with 35j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-61f2324e5b33]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1979

Related Models

• Seiko 7064-338
• Seiko 3891-258
• Seiko 5672-816
• Seiko 6350-740
• Seiko 6150-942
• Seiko 6615-657
• Seiko 3883-599
• Seiko 6345-918
• Seiko 4591-283
• Seiko 4593-387
• Seiko 6122-326
• Seiko 6258-302