c1975 Serviced ROLEX Vintage DateJust 1603 36mm cal.1570 #1622

Condition Rank : Very Good  
(Full serviced on September 4, 2026)

[Description of services]  
Full disassembly, cleaning, inspection, lubrication, and assembly.

[Originality Verified] - Authentic Original  
This Rolex Datejust is judged original and period-correct overall. The minute-hand lume has been refinished with Luminova.

[Features]  
Rolex Datejust Ref.1603 / cal.1570 (hack) / 19,800 bph / 36mm case / 20mm lug  
Year: c.1975 / Serial No: 388xxxx  
Non-waterproof.

[Collector’s Notes]  
The Rolex Datejust Ref.1603 uses an engine-turned bezel. The name comes from its machine-cut repeating pattern, a decorative technique known as engine turning.  
The bracelet code A also matches the 1975 production period.

[Dial] : Excellent  
It appears original. No clear signs of redial, repainting, or relume.

[Hands] : Good  
No clear signs of replacement. The minute-hand lume was missing and has been refinished with Luminova.

[Crystal] : Very Good  
Plexiglass.

[Case, crown and back of the case] : Good  
Age-related wear is present. Crown screw-in is very good (approx. 1.4 turns). Serial is readable.

[Band] : Good  
Rolex Jubilee Ref.62510H / End 555 / Code A. Fits up to approx. 20cm. Some stretch, but still in good condition.

[Action] : Very Good  
Automatic winding, hand-winding, time-setting, and date change work properly.

[Accuracy] : Very Good  
About -9 to +4 sec/day. (Measured by Timegrapher)