Seiko Cal. 6633 - 161

Seiko 6633-161

The 6633-161 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6633 caliber with 23j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-34294d5b8af0]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Burgundy
Jewels
23j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1966

Related Models

seikata-wm-34294d5b8af0