Seiko Cal. 3816 - 648

Seiko 3816-648

This Automatic model from 1981 features a 40mm Titanium case. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-39ab2c9cf4c8]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
14.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
60m
Dial Color
Silver
Jewels
36j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1981

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