Seiko Cal. 3813 - 721

Seiko 3813-721

The 3813-721 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-11ef56771210]

Also known as: Turtle

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
24j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1977

Related Models

seikata-wm-11ef56771210