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Zenith diver Big Lemon A3637

Zenith diver Big Lemon A3637


Brand: Zenith
Typology: Vintage diver watch
Year: 1970

N.O.S Zenith "Big Lemon" Diver

This 1960's Zenith Diver Reference A3637 is a very rare vintage diver's watch.

With its cool design, the "Big Lemon" was definitely ahead of its times. The Zenith Diver A3637 owes its nickname to the large case and the "tasty" lemon color of the dial and the bakelite bezel. Technically, this watch has a lot to offer. The guaranteed water resistance of 1000m made the Zenith Diver a reliable instrument of a professional diver.

The condition of this watch can be described in one word: nonreplacable. The case is unpolished and sharp. The dial is in a NOS condition. The original company's seal and the engraved serial number are still visible on the case back. This indicates that this Big Lemon was almost never worn.

The original tritium lume is intact in all parts. The heart of the watch is the automatic caliber 2542PC, which is among Zenith's most stable running movement. An original Gay Frères (GF) bracelet from 1970 in perfect condition is included in the offer as the original box.


Brand: Zenith

Model: Big Lemon

Ref: A3637

Serial: 416D-635

Year: 1970

Band/Strap: Original and never worn GF

Case Material: Steel

Case Size: 43x50mm

Glass: Mineral

Lume: Yes, Tritium Dial Color: Yellow Lug Width: 20mm

Movement: 2542PC self-winding

Water Resistance: 1000mt (not tested)

With Manual/Booklet: No

Manufacturer Warranty: No

With Original Box/Packaging: YES

Service: Lab Checked, Last service date unknow

Conditions: New Old Stock

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  • General info

    • Reference: A3637
    • Serial number: 416D-6xx
    • Case material: Steel
    • Glass: Mineral
    • Caseback: Screw-back
    • Case diameter: 43.0 mm
    • Bezel Materials: Steel
    • Dial color: Yellow
    • Dial numerals: No numerals
    • General conditions: New Old Stock
    • Water resistance rate: Not waterproof
  • Band or Strap

    • Band material: Metallic bracelet
    • Lug width: 20 mm
    • Buckle type: Clasp
    • Buckle material: Steel
  • Movement

    • Calibre: 2542 PC
    • Movement type: Automatic
    • Complications: Date