Seiko Cal. 6631 - 353

Seiko 6631-353

This Spring Drive model from 1986 features a 44mm Stainless Steel case. Powered by the 6631 caliber with 23j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-b73d4893b38f]

Also known as: Flighty

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Burgundy
Jewels
23j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1986

Related Models

seikata-wm-b73d4893b38f