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The Encyclopedia of Horology

Wristwatch · Automatic diver's watch

Girard-Perregaux Sea Hawk Pro 1000m

Partially verified

This Girard-Perregaux Sea Hawk II, reference 49950, is an automatic wristwatch with a 44mm stainless steel case. It features a unidirectional rotating elapsed-time bezel and an asymmetrical screw-down crown located at 4 o'clock, complemented by integrated crown protectors and a helium escape valve. The dial is constructed of textured black carbon fiber, displaying luminous hour markers and hands, a small seconds sub-dial at 10 o'clock, a linear power reserve indicator at 6 o'clock, and an angled date window at the 1:30 position. The movement is the Girard-Perregaux Calibre GP033R0, a 27-jewel automatic movement offering a 46-hour power reserve. The watch includes an original black rubber dive strap with a stainless steel push-button foldover deployment clasp. It is accompanied by a presentation box and two sets of papers. The auction description reports the watch was observed to wind, set, and run.

Front view of the Girard-Perregaux Sea Hawk II watch with carbon fiber dial and power reserve indicator.
Front view of the Girard-Perregaux Sea Hawk II watch with carbon fiber dial and power reserve indicator. — Invaluable. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Wristwatch · Automatic diver's watch
Maker / attribution
Girard-Perregaux
Reference
49950
Catalogue / lot identifier
1064
Source-reported date
Not established
Source-reported place
Not established
Source-reported serial
N 232

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The watch is housed in a 44mm stainless steel case with a unidirectional rotating elapsed-time bezel. The design incorporates an asymmetrical screw-down crown at the 4 o'clock position, which is protected by integrated crown guards. A helium escape valve is included to support diving functionality, and the caseback is screwed-in, featuring an embossed Sea Hawk seal.

The dial is manufactured from textured black carbon fiber. It incorporates luminous markers for the hours and the hands to improve visibility. Specific indicators include a small seconds sub-dial positioned at 10 o'clock, an angled date window located at the 1:30 position, and a linear power reserve indicator situated at 6 o'clock.

Evidence for this section
  • “44mm stainless steel case features anasymmetrical screw-down crown located at 4 o'clock with integrated protectors, a helium escape valve, and a solid screwed-in caseback”
  • “Textured black carbon fiber dial features bold luminous hour markers and hands, a small seconds sub-dial at 10 o'clock, a linear power reserve indicator at 6 o'clock, and an angled date window at the 1:30 position.”

Movement and Functionality

Power is provided by the Girard-Perregaux Calibre GP033R0, which is a 27-jewel automatic movement. It is designed with a 46-hour power reserve. The auction description reports that the watch was observed to wind, set, and run during a 12-hour observation period.

These tests included the date function and the power reserve indicator. The crystal is made of domed sapphire and features anti-reflective treatment.

Evidence for this section
  • “Powered by Girard-Perregaux Calibre GP033R0 27 jewel automatic movement with a 46-hourpower reserve.”
  • “Observed to wind, set, and run, including date and power reserve functions.”
  • “domed sapphire crystal with anti-reflective treatment.”

Included Accessories and Condition

The timepiece is supplied with its original black rubber dive strap, which is secured by a Girard-Perregaux stainless steel push-button foldover deployment clasp. Included with the watch is a fitted presentation box, which features a personalized exterior plate along with an original, non-personalized replacement plate.

Additionally, two full sets of papers are provided; one set is completed, while the other remains blank. The auction house reports the condition as very good, noting that the dial, hands, and crystal appear as new, while the case, crown, and buckle exhibit minor scuffing and small marks.

Evidence for this section
  • “Attached to original black rubber dive strap with matching Girard-Perregaux stainless steel push-button foldover deployment clasp.”
  • “Accompanied by original Girard-Perregaux fitted presentation box”
  • “two full sets of papers in original boxes”
  • “Overall very good condition. Crystal, hands, and dial like-new. Case and crown show mild scuffing and several small impact marks.”

Open research questions

  • What is the specific production date range for serial number N 232?
  • Does the inclusion of two sets of papers indicate a replacement or service history for the set?

Source evidence

Recorded claims and source quotations for Girard-Perregaux Sea Hawk Pro 1000m
FieldSource-reported valueSource quotation
MakerGirard-Perregaux“GIRARD-PERREGAUX”
ModelSea Hawk II“Sea Hawk II model 49950”
Serial numberN 232“serial number N 232”
MovementCalibre GP033R0“Girard-Perregaux Calibre GP033R0 27 jewel automatic movement”
Case diameter44mm“44mm stainless steel case”
Power reserve46 hours“46-hourpower reserve”

Visible details

  • Textured black carbon fiber dial
  • Helium escape valve on case side
  • Asymmetrical screw-down crown at 4 o'clock
  • Linear power reserve indicator at 6 o'clock

Research qualifications

  • The exact year of manufacture is not provided in the source.
  • The source notes the watch was observed to run within a brief 12-hour window, which does not constitute a long-term performance guarantee.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

GIRARD-PERREGAUX SEA HAWK PRO 1000m 49950, COMP.

Reviewed 2026-10-26 · Record 5c99537c07

Terms in this record

Glossary explanations for terms named in this object’s record.