Seiko Cal. 6131 - 604

Seiko 6131-604

Released in 1974, the Cal. 6131 with design code 604 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-fc2873810ad6]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
90m
Dial Color
Green
Jewels
28j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1974

Related Models

seikata-wm-fc2873810ad6