Seiko Cal. 5643 - 831

Seiko 5643-831

The 5643-831 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-2775c142638b]

Also known as: Turtle, Bullhead

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
39mm
Case Thickness
15.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Silver
Jewels
31j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1977

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seikata-wm-2775c142638b