Seiko Cal. 6631 - 462

Seiko 6631-462

The 6631-462 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-2a4482313661]

Also known as: Tuna, UFO

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
9.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
White
Jewels
21j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1981

Related Models

seikata-wm-2a4482313661