Seiko Cal. 4487 - 645

Seiko 4487-645

This Spring Drive model from 1998 features a 45mm Titanium case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-36f4b1094695]

Also known as: Monster, Sumo

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
45mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Cream
Jewels
35j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1998

Related Models

seikata-wm-36f4b1094695