Seiko Cal. 4420 - 525

Seiko 4420-525

The 4420-525 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-f99bf2a07ca6]

Also known as: Tuna, Bellmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
13.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1995

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