Seiko Cal. 6631 - 957

Seiko 6631-957

The 6631-957 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6631 caliber with 19j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-816d7e9a4f87]

Also known as: Pogue, Arnie

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1970

Related Models

seikata-wm-816d7e9a4f87