Seiko Cal. 4438 - 606

Seiko 4438-606

The 4438-606 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4438 caliber with 21j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-dc7f9ed72693]

Also known as: Monster, Silverwave

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
8.8mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Navy
Jewels
21j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1983

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seikata-wm-dc7f9ed72693