Seiko Cal. 6330 - 990

Seiko 6330-990

The Seiko 6330-990 represents an important milestone in Seiko's 1970 lineup. Powered by the 6330 caliber with 29j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-4ddd2fb3f6c4]

Also known as: Helmet

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.1mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Green
Jewels
29j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1970

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