Seiko Cal. 5681 - 357

Seiko 5681-357

The 5681-357 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-0c95193f5189]

Also known as: Helmet, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
30m
Dial Color
Burgundy
Jewels
17j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1975

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