Seiko Cal. 4438 - 857

Seiko 4438-857

The 4438-857 is a sought-after Automatic piece from Seiko's golden era. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f8945672d827]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
White
Jewels
27j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1970

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