Seiko Cal. 0721 - 135

Seiko 0721-135

This Spring Drive model from 1968 features a 35mm Two-Tone case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-2270056a20c3]

Also known as: Bellmatic, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
35mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Green
Jewels
24j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1968

Related Models

seikata-wm-2270056a20c3