Seiko Cal. 4431 - 306

Seiko 4431-306

The 4431-306 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4431 caliber with 32j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-8e159e939125]

Also known as: Navigator

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Navy
Jewels
32j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1970

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seikata-wm-8e159e939125