Pre-Daytona Chronograph Grey Dial

SPECIFICATIONS

Brand: Rolex
Model: Chronograph "Pre-Daytona"
Reference Number: 6238
Movement: Manual Valjoux 72
Condition: Very good (some signs of wear due to age and use)
Gender: Men’s
Time Period: 1963
Box: No
Papers: No

THE CALIBER
Caliber: 722
Jewels: 17

THE CASE
Case Material: Stainless steel
Case Diameter: 36 mm
Thickness: 11 mm
Waterproof: 100 ft. / 30 m.
Water Resistance: 3 ATM
Material Bezel: Fixed stainless steel
Glass: Acrylic 
Dial: Grey with printed black numeral Tachymeter scale  
Dial Numerals: Faceted steel baton hour indices with luminous dots around a perimeter minute/one-fifth second divisions scale around the outer rim, black Arabic numeral Tachymeter scale printed around the outer rim

THE BRACELET/STRAP
Bracelet color: Stainless steel 
Bracelet Material: Stainless steel Oyster (later series) 
Clasp: Fold-over 
Clasp material: Stainless steel

FUNCTIONS
Central hour, minute and seconds hands, chronograph (center hand) accurate to within 1/8 of a second, column wheel, chronograph sub-dials counters 60-second at 9 o'clock, 30-minute at 3 o’clock and 12-hour at 6 o’clock, Tachymeter track, 48-hour power reserve

FURTHER READING

Brushed and polished round-shaped case, integrated lugs
White gold and luminous insert baton-shaped hour/minute hands, black stick-shaped sub-dial hands, black arrow-shaped chronograph hand, faceted baton hour markers
Inner Tachymeter scale (printed on the dial) as opposed to the first Daytona ref. 6239 (starting production 1963) and so on that world being displayed on the bezel
Stainless steel screw-down solid case back
Stainless steel screw-down chronograph pump pushers at 2 (start/stop) and 4 o'clock (reset)
Excellent -T SWISS T- grey chronograph original dial with all nicely aged creamy patina lume dots except for the 2,3 and 4 o'clock markers, which is common for these dials.
Stainless steel Twinlock waterproof screw-down crown with Rolex crown logo
This second series Rolex "Pre-Daytona" 6238 has a mechanical manual winding Valjoux 72 caliber 722 movement. It is rhodium-plated and it is constructed with 17 jewels, a straight-line lever escapement, a shock absorber device, and a monometallic balance that's adjusted to heat and three positions. It includes a self-compensating free-sprung Bréguet balance spring and a Microstella regulating screws.
This mechanism oscillates at the frequency of 18,000 vph (2.5 Hz).
Case, dial, and movement are signed.
This model was in production from 1961/62 to 1968 and was succeeded by model 6234. At the same time, Rolex started the production of the first Daytona ref. 6239  in 1963.
The 6238 is the last chronograph generation to feature a smooth bezel.
Limited edition of approximately 3,600 examples
Serial # 974***
Incomplete (no box, no papers) 
This timepiece includes the original payment receipt dated 1966 and the service receipt dated 1991. 

Warranty & authenticity

We stand behind the authenticity and quality of our merchandise, nothing is more important to us that a transparent transaction that makes our clients well-pleased.
Twain Time has more than 30 years of experience in buying and selling previously owned luxury goods, and quality-control is extremely important to us. Our trusted experts take the worry out of buying so that you can focus on finding your most desirable watch or jewelry.
Every item has undergone a thorough inspection by our knowledgeable technicians, ensuring full originality (unless stated otherwise) and perfect working condition to assure you get everything as expected. We know the value of security.
To provide further peace of mind, we offer a 12-month limited warranty alongside any remaining manufacturer’s warranty on all our luxury timepieces and fine jewelry from the date of purchase.
Please see our Terms & Conditions for further information.

Shipping & Returns

We offer a fully insured domestic & worldwide, express & priority delivery service. If ordering from the US, your order will be sent immediately after the reception of the funds.
The courier will depend on the value of the purchase, with all orders delivered the next business day. If ordering from outside the US, your order will be sent immediately after reception and clearance of the funds. International deliveries will depend on the choice of the courier and the destination. Our commitment does not end at delivery.
We offer a 7-day store credit/exchange to make your experience as pleasant and comfortable as possible.
Please see our Terms & Conditions for further information. We make continuous efforts to provide outstanding service. We value our clients' relationships and strive to offer the highest quality of customer service at every opportunity.