Seiko Cal. 4439 - 988

Seiko 4439-988

The 4439-988 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-e2525a3f1c67]

Also known as: Pogue, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Silver
Jewels
34j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1991

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