Seiko Cal. 4428 - 716

Seiko 4428-716

The 4428-716 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-1b84ee591987]

Also known as: Tuna, Helmet

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
43mm
Case Thickness
11.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Silver
Jewels
35j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1976

Related Models

seikata-wm-1b84ee591987