Seiko Cal. 6649 - 536

Seiko 6649-536

The Seiko 6649-536 represents an important milestone in Seiko's 1977 lineup. Powered by the 6649 caliber with 19j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-5481223ed039]

Also known as: Tuna, Bullhead

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
37mm
Case Thickness
12.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1977

Related Models

seikata-wm-5481223ed039