Seiko Cal. 4487 - 736

Seiko 4487-736

The 4487-736 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-653664fc6a93]

Also known as: Sumo, Bellmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
39mm
Case Thickness
12.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1976

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