Seiko Cal. 4540 - 823

Seiko 4540-823

This Automatic model from 1982 features a 39mm Titanium case. Powered by the 4540 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-3ef60f265ac5]

Also known as: World Timer, Golden Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
39mm
Case Thickness
13.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1982

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