Omega Speedmaster Professional Moon Phase 18k White Gold Bezel Ref 3575.20 Swiss Cal 1866


Out of stock

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Don’t let the broad arrow hands fool you! Often confused with the Speedmaster Broad Arrow, this Moonphase model is definitely part of the “Speedmaster Professional” collection. This Speedmaster Professional Moonphase is based on the Speedmaster ’57 re-edition ref. 3894.50.37 that was introduced in 1997/1998. It was in production from 1999 till 2003 and has the famous hand-wound Lemania based caliber 1866 movement. This is a modified version of the caliber 1861 movement, that can be found in the current line-up of Speedmaster Professional ‘Moonwatch’ timepieces.

This Speedmaster Professional Moon Phase ref. 3575.20 clearly has ‘Professional’ written on the dial, but there just seems to be some confusion all the time about the Moonwatch and all the different varieties on it. The easiest way to tell a ‘Moonwatch’ or ‘Professional’ from other Speedmaster variations is the hand-wound movement.

White Gold Bezel

You probably are familiar with the white gold Speedmaster Professional with a Moonphase complication 3689.30.31. This reference 3575.20 Speedmaster Pro Moonphase also has a white gold element! The bezel has a slightly different tone than the case and bracelet. It is an 18 carat white gold bezel. Where the white gold bezel on the Speedy Pro Moonphase (ref. 3689.30.31) has a black aluminum inlay with the tachymeter scale, this solid white gold bezel on the ref. 3575.20 Speedy is just one piece with an engraved tachymeter scale.


A very short production time might be the cause of only a limited availability on the pre-owned market of these Speedmaster Professional Moon Phase models. The Speedmaster Professional 3575.20 has initially been offered for sale with either a stainless steel bracelet or a leather strap with a folding clasp. Ordering a spare stainless steel bracelet is more expensive than getting a leather strap for this watch, so look out for the models that come with the stainless steel bracelet.

BRAND: Omega

MODEL: Speedmaster Professional Moon Phase Ref 3575.20

MOVEMENT: Manual Wind – Swiss Cal 1866

CASE: Stainless Steel

CROWN: Non Screw Down

SIZE: 42.5mm

LUGS: 22mm

DIAL: White Omega Professional Moon Phase Dial 

BEZEL: !8k White Gold Tachymeter Bezel

CONDITION: Pre-owned – Excellent 

BOXES/PAPERS: Omega Box Set Instruction Manual and watch


STRAP/BRACELET: – Original Omega Stainless Steel bracelet with all links which will fit up to an 8 inch wrist.


Trades welcome!!

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