Seiko Cal. 5640 - 135

Seiko 5640-135

This Spring Drive model from 1969 features a 34mm PVD Black case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e7dc3f506126]

Also known as: Bellmatic, Navigator

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
34mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Navy
Jewels
26j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1969

Related Models

seikata-wm-e7dc3f506126