Seiko Cal. 4430 - 285

Seiko 4430-285

The Seiko 4430-285 represents an important milestone in Seiko's 1965 lineup. Powered by the 4430 caliber with 36j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-2eef165b2a07]

Also known as: Helmet, Rally

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
14.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
30m
Dial Color
Navy
Jewels
36j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1965

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