Seiko Cal. 5636 - 781

Seiko 5636-781

The 5636-781 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-d8b792fcc028]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
41mm
Case Thickness
13.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
17j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1972

Related Models

seikata-wm-d8b792fcc028