Seiko Cal. 5631 - 741

Seiko 5631-741

The 5631-741 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-2f3d3cdf9dac]

Also known as: Tuna, Navigator

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
41mm
Case Thickness
10.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
50m
Dial Color
Silver
Jewels
28j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1993

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