Seiko Cal. 4439 - 251

Seiko 4439-251

This Quartz model from 1975 features a 39mm Hardlex-Coated Steel case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-7baf65a4c9a7]

Also known as: Bullhead, World Timer

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
10.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Green
Jewels
34j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1975

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