Seiko Cal. 6677 - 407

Released in 1967, the Cal. 6677 with design code 407 was part of Seiko's domestic market collection. Powered by the 6677 caliber with 20j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-eb40932ad552]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1967

Related Models

• Seiko 5644-599
• Seiko 6615-637
• Seiko 4485-593
• Seiko 7024-520
• Seiko 0740-969
• Seiko 3855-523
• Seiko 6156-145
• Seiko 0796-268
• Seiko 6610-633
• Seiko 0757-469
• Seiko 0741-936
• Seiko 6163-794