Seiko Cal. 3817 - 921

Seiko 3817-921

The 3817-921 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-e399cc407524]

Also known as: Turtle, Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Navy
Jewels
36j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1989

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