Seiko Cal. 6647 - 880

Released in 1965, the Cal. 6647 with design code 880 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-2e1cc73be369]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

Related Models

• Seiko 7099-952
• Seiko 6672-954
• Seiko 6148-544
• Seiko 7187-991
• Seiko 6155-727
• Seiko 6675-742
• Seiko 5276-433
• Seiko 3890-862
• Seiko 5245-245
• Seiko 3825-355
• Seiko 6625-666
• Seiko 7052-484