Seiko Cal. 4540 - 139

Seiko 4540-139

This Quartz model from 1971 features a 43mm Two-Tone case. Powered by the 4540 caliber with 17j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-9b754b2b542a]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
43mm
Case Thickness
15.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1971

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seikata-wm-9b754b2b542a