Seiko Cal. 3887 - 643

Seiko 3887-643

The 3887-643 is a sought-after Quartz piece from Seiko's golden era. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c6e6835e5dac]

Also known as: Monster, World Timer

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
130m
Dial Color
Burgundy
Jewels
26j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1966

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