Vintage Longines Admiral: Versions, Value and Buying Advice

Buy the dial and case geometry first: a clean 35 mm steel Admiral with a known caliber pairing is the safest route into the model.

Longines - Admiral Five Star 'Serviced' - 8337 1

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Longines - Admiral - No reserve price - 8336 6 - Men - 1970-1979

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The vintage Longines Admiral spans 1955-1977, so the name reaches from mid-century automatic watches into distinctly 1970s steel designs. The Admiral shown here belongs to a family that includes compact round, cushion and tonneau-shaped cases rather than one fixed case architecture.

A used Longines Admiral makes most sense when its dial, case and movement agree with a known configuration. The strongest examples combine a clean sunburst or vertically brushed dial with defined case lines; visible spotting, hand oxidation and softened geometry create a wider quality spread than the shared name suggests.

Collector's guide to Longines

Known production span

1955-1977

Documented case sizes

34 mm and 35 mm, excluding the crown

Documented case material

Stainless steel

Known automatic calibers

Longines 505, 506 and 6651

Documented jewel counts	17 jewels for caliber 505 examples and 25 jewels for caliber 6651 examples
Documented caliber 6651 rate	28,800 beats per hour
Documented dial treatments	Silver sunburst, deep blue sunburst and vertically brushed silver
Documented shaped cases	Cushion case on 8342-1 and tonneau-shaped case on 8342-2
Documented bracelet type	Signed Milanese mesh on 8342-1 and signed mesh on 8342-2

What it was built for

The Admiral was built as a practical automatic Longines with enough dial detail to sit above a plain everyday watch. Applied five-star emblems, faceted indices and date apertures occur on 1970s examples, while stainless steel cases keep the proposition usable rather than purely formal. Known automatic calibers include 505, 506 and 6651.

The 34 mm and 35 mm cases make the Admiral compact by current standards, but the shaped cases carry more visual weight than the measurements imply. Reference 8342-1 uses a cushion case and signed Milanese mesh bracelet, while 8342-2 takes a tonneau-shaped form. Those details place the watch firmly in its period without making it difficult to wear with a cuff.

Where the value sits

The dial controls the largest part of an Admiral's value spread. Clean silver or deep blue sunburst surfaces retain their radial finish, while a vertically brushed silver dial should show a consistent grain; spotting, moisture marks and a redial cost more than light case wear. A refinished dial is the fault to avoid before worrying about a replaced crystal or gasket.

Case definition comes next. Sharp transitions on the cushion and tonneau cases matter because polishing softens their geometry permanently, while scratches can remain honest evidence of wear. The signed mesh bracelet adds coherence to references 8342-1 and 8342-2, but stretched links, poor end fit or an unsigned replacement reduce the premium attached to the complete configuration.

Movement identity is valuable as corroboration, not as a shortcut. Watches we have handled pair 8342-1 and 8342-2 with caliber 505, 8336 6 with caliber 506, and 1503-2 and 1563 1 with caliber 6651. Those pairings are useful comparison points, but the evidence does not establish every configuration across the full 1955-1977 run.

Where to start

Start with a clean 35 mm steel example if you want the broadest choice among the documented 1970s configurations. Reference 8336 6 combines a silver sunburst dial with caliber 506, while 1503-2 uses caliber 6651 and adds a date aperture. Between a spotted dial in a sharper case and a clean dial with light external wear, take the clean dial.

The shaped 8342 references are the more period-specific choice. Pick 8342-2 for its deep blue sunburst dial and tonneau case, or 8342-1 for the silver dial, red minute track and cushion profile. On either, bracelet completeness matters only after the dial has passed inspection and the case still shows deliberate edges.

Service history is unknown unless supported by records, and a running automatic movement does not establish recent work. Budget for assessment of the caliber and treat water resistance as unproven. The sensible used Longines Admiral is therefore the watch with the least dial intervention, the clearest case shape and a movement consistent with its reference.

What to check before you buy

Match the movement to a handled reference pairing: Known examples pair 8342-1 and 8342-2 with caliber 505, 8336 6 with caliber 506, and 1503-2 and 1563 1 with caliber 6651. A different pairing needs stronger evidence before it is accepted.
Judge the dial finish before the five-star emblem: Silver and blue sunburst dials should retain a coherent radial finish, while the vertically brushed dial of 1563 1 should keep a consistent grain. Flat paint, lost texture or bleeding print points toward a redial.
Confirm the correct shaped-case character: Reference 8342-1 is known as a 34 mm cushion case, while 8342-2 is known as a 35 mm tonneau-shaped case. Rounded transitions or mushy edges indicate polishing and remove geometry that cannot be returned.
Separate hand damage from dial originality: Oxidation is documented on the hands of a 1563 1 example and does not by itself prove a redial. Mismatched finish, length or ageing between the hands and applied indices is a stronger warning of replacement parts.
Treat crown and caseback claims cautiously: The available evidence does not establish one crown or caseback pattern for every Admiral made from 1955-1977. A signature alone is insufficient, and unsupported blanket claims of originality should carry no premium.
Screen for a franken assembly rather than one isolated replacement: A franken Admiral combines parts that did not ship together. Conflicting case shape, dial layout and caliber pairing matters more than a replaced crystal, crown or gasket, which are consumable service parts.