Seiko Cal. 6630 - 956

Seiko 6630-956

The 6630-956 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6630 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-8889d2668ace]

Also known as: Sumo, World Timer

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
11.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1977

Related Models

seikata-wm-8889d2668ace