Seiko Cal. 4421 - 772

Seiko 4421-772

The 4421-772 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-00736d468810]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
10.5mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Champagne
Jewels
24j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1978

Related Models

seikata-wm-00736d468810