Seiko Cal. 4540 - 190

Seiko 4540-190

This Automatic model from 1966 features a 43mm Stainless Steel case. Powered by the 4540 caliber with 21j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-eea06b909af9]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
12.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
21j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1966

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