Seiko Cal. 6277 - 657

This Hand-Winding model from 1971 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7f39f8ef4cec]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1971

Related Models

• Seiko 0795-705
• Seiko 7048-316
• Seiko 5675-714
• Seiko 7030-748
• Seiko 7163-676
• Seiko 4477-478
• Seiko 7093-165
• Seiko 7083-290
• Seiko 6238-873
• Seiko 7156-823
• Seiko 5612-262
• Seiko 5290-794