Seiko Cal. 6678 - 692

The 6678-692 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6678 caliber with 17j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-7e108a62e09d]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1999

Related Models

• Seiko 6215-720
• Seiko 6294-197
• Seiko 7022-476
• Seiko 6140-176
• Seiko 4531-226
• Seiko 5277-704
• Seiko 7055-404
• Seiko 4572-469
• Seiko 6691-667
• Seiko 5636-236
• Seiko 5671-954
• Seiko 5619-704