Seiko Cal. 6681 - 677

Seiko 6681-677

The Seiko 6681-677 represents an important milestone in Seiko's 1997 lineup. Powered by the 6681 caliber with 22j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-1f5f2badb309]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
12.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1997

Related Models

seikata-wm-1f5f2badb309