Seiko Cal. 6678 - 899

The 6678-899 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6678 caliber with 26j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-ff04ebd374ba]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1976

Related Models

• Seiko 7110-487
• Seiko 7088-652
• Seiko 7195-314
• Seiko 7189-362
• Seiko 7171-656
• Seiko 7157-703
• Seiko 4586-988
• Seiko 5225-832
• Seiko 6632-968
• Seiko 0786-970
• Seiko 5232-640
• Seiko 5217-728