Seiko Cal. 4439 - 551

Seiko 4439-551

The 4439-551 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4439 caliber with 32j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-3d05e370a153]

Also known as: Samurai, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
32j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1987

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seikata-wm-3d05e370a153