Seiko Cal. 4447 - 557

Seiko 4447-557

The 4447-557 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-4475bf23ac4c]

Also known as: Monster, Navigator

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Green
Jewels
17j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1965

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