Seiko Cal. 5657 - 819

Seiko 5657-819

The 5657-819 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-4f2c916761b0]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
10.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1975

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