Seiko Cal. 4425 - 690

Seiko 4425-690

The 4425-690 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-e8a647c05e9f]

Also known as: Monster, Sportsmatic

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Silver
Jewels
35j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1991

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