Seiko Cal. 3887 - 730

Seiko 3887-730

This Spring Drive model from 1971 features a 34mm Stainless Steel case. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-a8c497a17c84]

Also known as: Navigator

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.8mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
90m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1971

Related Models

seikata-wm-a8c497a17c84