Seiko Cal. 6631 - 417

Seiko 6631-417

The Seiko 6631-417 represents an important milestone in Seiko's 1994 lineup. Powered by the 6631 caliber with 32j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-cdf18ec24b3a]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Black
Jewels
32j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1994

Related Models

seikata-wm-cdf18ec24b3a