Seiko Cal. 3899 - 746

Seiko 3899-746

The 3899-746 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-4a28bfd87289]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
8.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Black
Jewels
31j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1970

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seikata-wm-4a28bfd87289