Seiko Cal. 3816 - 731

Seiko 3816-731

The 3816-731 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-9d508626983b]

Also known as: Rally, Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
44mm
Case Thickness
14.7mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Champagne
Jewels
29j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1974

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