Seiko Cal. 7156 - 721

Seiko 7156-721

The Seiko 7156-721 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-6ec03a074693]

Also known as: Turtle

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
36j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1968

Related Models

seikata-wm-6ec03a074693