Seiko Cal. 6131 - 684

Seiko 6131-684

The Seiko 6131-684 represents an important milestone in Seiko's 1971 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3e88928c5335]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
10.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1971

Related Models

seikata-wm-3e88928c5335