Laco Aachen 39 MB Automatic Pilot Watch | Steel Bracelet | Ref. 862139
Laco 1925Laco Aachen 39 MB Automatic Pilot Watch
The Laco Aachen 39 MB brings the historic Type B observation-watch dial into a balanced 39 mm format designed for comfortable everyday wear. Large five-minute numerals around the outer track and a compact hour scale at the center give the watch its distinctive instrument-like clarity.
The black pilot dial is paired with a matt-finished stainless steel case and a fitted stainless steel bracelet with curved end pieces. Inside, the automatic Laco 2S movement delivers dependable mechanical performance and a power reserve of approximately 42 hours.
We selected the Aachen 39 MB for collectors who appreciate the technical character of a traditional Type B pilot dial but prefer more versatile proportions. Its 39 mm case and steel bracelet make it an especially practical choice for daily wear without losing the unmistakable identity of a German pilot watch.
At a Glance
Why Collectors Choose the Aachen 39 MB
Authentic Type B layout: The outer scale displays the minutes in five-minute increments, while the smaller inner ring displays the hours from 1 through 12. This arrangement traces its design language to historic observation watches developed for immediate legibility.
Balanced 39 mm proportions: The compact case, curved lugs, and relatively slim profile preserve the presence of a pilot watch while making it more comfortable for a wide range of wrist sizes.
Strong low-light visibility: The dial numerals, markings, and hands use Super-LumiNova C3 for clear nighttime readability.
A contemporary everyday configuration: The matt-finished case and fitted bracelet give this version a more versatile appearance than the traditional leather-strap pilot watch.
At 39 mm in diameter, 11.55 mm high, and 46.5 mm from lug to lug, the Aachen 39 MB offers a confident pilot-watch appearance without feeling oversized. The curved bracelet end pieces create a clean transition between the case and bracelet.
The Laco 2S automatic movement is based on the Miyota 82S0 caliber. It offers a power reserve of approximately 42 hours and includes a hacking-seconds function for more precise time setting.
Technical Specifications
| Brand | Laco |
| Collection | Pilot Watches Basic |
| Model | Aachen 39 MB |
| Reference | 862139 |
| Movement | Laco 2S automatic, Miyota 82S0 base, hacking seconds |
| Power Reserve | Approximately 42 hours |
| Case | Matt-finished stainless steel |
| Diameter | 39.0 mm |
| Case Height | 11.55 mm |
| Lug-to-Lug | 46.5 mm |
| Lug Width | 18.0 mm |
| Crystal | Sapphire crystal |
| Dial | Black Type B pilot dial with Super-LumiNova C3 numerals and markings |
| Hands | Luminous hands filled with Super-LumiNova C3 |
| Bracelet | Stainless steel bracelet with curved end pieces |
| Wrist Circumference | Approximately 15.0 to 22.5 cm |
| Water Resistance | 5 ATM |
| Weight | Approximately 140 g including bracelet |
| Origin | Made in Germany |
Included with Your Watch
Your Laco Aachen 39 MB is supplied new in official Laco watch packaging with the accompanying manufacturer documentation.
Authorized Laco Dealer
Legend of Time is an Authorized Laco Dealer. This watch is covered by the official 24-month Laco manufacturer warranty from the date of purchase.
Complimentary fully insured shipping within the United States. Private appointments are available in Highland Park, Illinois.