Seiko Cal. 4438 - 578

Seiko 4438-578

The 4438-578 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-0b74b74312d7]

Also known as: Monster, World Timer

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Navy
Jewels
33j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1988

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