Seiko Cal. 4438 - 256

Seiko 4438-256

The 4438-256 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-4a5630786071]

Also known as: Monster, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1978

Related Models

seikata-wm-4a5630786071