Seiko Cal. 4445 - 173

Seiko 4445-173

The 4445-173 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-b873a9970adc]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
13.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
180m
Dial Color
White
Jewels
30j
Frequency
21,600 bph
Power Reserve
45 hours
Year
1966

Related Models

seikata-wm-b873a9970adc