Longines - Caliber 285 - No reserve price - 8306 4 - Men - 1970-1979

Presented for auction by Second Vintage

A remarkably clean example of a classic 1970s Longines manual wind, this reference 8306 pairs an exceptionally well-preserved silver sunburst dial with a distinctive tonneau-shaped case. Powered by the in-house manual winding caliber 285, it offers strong mechanical performance and preserved mid-century geometry.

Brand: Longines
Reference Number: 8306 4
Serial Number: 50920870
Movement: Manual wind caliber 285, 17 jewels
Dial: Silver sunburst with applied baton indices and framed date
Case Size: 35 mm (excluding the crown)
Case Material: Stainless steel
Production Year: 1970s
Condition: Excellent vintage condition. Timegrapher: +17+20s/day, performing remarkably well.

Dial and Hands
The silver sunburst dial is exceptionally clean and well-preserved, showing no significant spotting or damage. It features crisp printed Longines text and a winged hourglass logo, complemented by a cleanly framed date window at the three o'clock position. The applied baton indices are detailed with black inserts, adding a sharp contrast to the bright sunburst finish. The matching baton hands also carry black inserts and present clean surfaces with only minimal oxidation, completing the excellent condition of the dial.

Case and Crystal
The stainless steel tonneau-shaped case displays honest vintage wear while retaining its preserved geometry. The brushed upper surfaces transition nicely into polished flanks, exhibiting moderate scratches and handling marks consistent with its age, though the sharp lines remain generally preserved. The domed acrylic crystal is clear, showing some minor surface scratches when viewed under direct light. Fitted to the side of the case is the signed crown, bearing the Longines name and winged hourglass logo along its knurled edge, which shows some expected handling wear.

Movement
Inside is the Longines manual wind caliber 285, a 17-jewel movement introduced around 1970 that features an excenter regulator and a date complication. The plates and bridges are notably clean, showing no significant corrosion or damage, while the screw heads display only minor handling marks. The movement is proudly engraved with its caliber designation and matching serial number. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The timegrapher records a rate of +17+20s/day.

Strap
The watch is fitted with a lightly used black leather strap, detailed with white contrast stitching that perfectly complements the bright dial.

Condition
Excellent vintage condition. The silver sunburst dial is exceptionally well-preserved, showing no significant damage or spotting. The tonneau case displays moderate scratches and handling marks while maintaining sharp lines and honest character. The crystal and hands show only minor signs of age, and the movement remains clean. Supported by the recorded timegrapher result of +17+20s/day, the movement is performing very strongly.

Dimensions
The case measures 35 mm in diameter (excluding the crown).

Remarks
This Longines offers a classic 1970s tonneau case design paired with a beautiful, highly legible dial. Powered by a clean caliber 285, it is a well-preserved and charming example of a classic manual winding timepiece.

History
During the 1970s, Longines continued its tradition of producing reliable and elegantly designed mechanical timepieces. The reference 8306 was produced with a 35 mm stainless steel case, embracing the tonneau shape that became highly popular during this era. At its heart beats the caliber 285, a manual winding movement introduced around 1970, notable for integrating a date complication and an excenter regulator. This model represents a strong period of mid-century Swiss watchmaking, offering robust everyday performance wrapped in refined, distinctive geometry.

Payment and Shipping
Payment must be completed within 1–3 days after purchase.
Your watch will be professionally and securely packaged, then shipped with tracking and insurance for your peace of mind.
We use fast express shipping, with typical delivery within 1–4 business days, depending on the destination.
Please note that vintage watches may show minor signs of wear, aging, or imperfections, which are considered normal for watches of this age.
We kindly ask you to review all photos carefully before bidding. We photograph each watch from multiple angles to provide the most accurate representation possible, and the photos form an important part of the description.
The timegrapher assessment if provided is seen as an indication of the movement’s condition under fully wound testing conditions. As with all vintage watches, results may vary in daily use.
If you have any concerns regarding functionality or defects after delivery, please contact us within 3 days of receiving the watch so we can assist you.
As with all used watches, water resistance is not guaranteed.
If you have any questions, feel free to contact us after the auction ends.

/ Second Vintage

SKU: LON-MXX-0002