Seiko Cal. 6670 - 870

Released in 1978, the Cal. 6670 with design code 870 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-9abe431fc2cc]

Also known as: Goldfeather, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1978

Related Models

• Seiko 5219-335
• Seiko 0787-861
• Seiko 7039-108
• Seiko 5270-506
• Seiko 4480-515
• Seiko 6319-648
• Seiko 0716-695
• Seiko 4427-371
• Seiko 7010-610
• Seiko 3828-132
• Seiko 6213-714
• Seiko 4552-743