Seiko Cal. 5656 - 139

Seiko 5656-139

The 5656-139 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-9eb70a94a2c0]

Also known as: Tuna, Bullhead

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
10.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
White
Jewels
22j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1966

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