Seiko Cal. 6678 - 380

The 6678-380 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6678 caliber with 35j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-be462d257b49]

Also known as: Bullhead, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1993

Related Models

• Seiko 4436-901
• Seiko 6120-511
• Seiko 6687-830
• Seiko 7080-869
• Seiko 7095-965
• Seiko 5614-970
• Seiko 6664-346
• Seiko 6228-626
• Seiko 7189-175
• Seiko 4484-269
• Seiko 5286-747
• Seiko 3831-603