Seiko Cal. 6648 - 380

Seiko 6648-380

The Seiko 6648-380 represents an important milestone in Seiko's 1983 lineup. Powered by the 6648 caliber with 24j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-7d6d29577892]

Also known as: Turtle, Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1983

Related Models

seikata-wm-7d6d29577892