Omega
Speedmaster '57
331.20.42.51.02.001
On this page you can read about Omega model Speedmaster '57 331.20.42.51.02.001. All the technical specifications like case material, case diameter and calibre attributes like movement type, power reserve etc. are listed here in an easy to understand tabular format. There are also images of Speedmaster '57 331.20.42.51.02.001. At the bottom of the page you can find similar watches from Omega.
Important facts
The Omega Speedmaster '57 331.20.42.51.02.001 has a sapphire crystal which provides a durable and clear viewing surface for the dial. This type of crystal is highly resistant to scratches and does not discolor over time. Sapphire is also resistant to most chemicals and less likely to shatter compared to other materials, making it a safer choice for the watch wearer. Thefore sapphire is a good choice for high-end wristwatches. It is of course an expensive option, compared to other materials, like plexiglass.
This watch has a two-tone (steel and yellow gold) case, a combination of two different materials. Steel provides durability and affordability, while yellow gold offers elegance and prestige. This combination of materials creates a unique and attractive look for the watch, making it a popular choice among collectors. The two-tone case can be especially appealing to those who want the durability of steel, but also want the appearance of gold without the higher cost of a solid gold watch. Overall, the two-tone case provides a nice balance between durability, luxury, and style.
This timepiece is a chronometer, certified by COSC, the Official Swiss Chronometer Testing Institute. The testing involves a series of measurements over a period of 15 days in different positions and temperatures to ensure the watch's accuracy.
The Speedmaster '57 reference 331.20.42.51.02.001 has a chronograph complication, which is a function that allows the user to measure elapsed time, independent from the regular time. It is started and stopped by the press of a button, usually found on the side of the watch case. The elapsed time can be used to measure events like race times, cooking times, or similar where a precise measurement of elapsed time is needed. The chronograph is one of the most useful complications.
Technical specifications
anti reflective coating | inner and outer |
bracelet material | two tone steel yellow gold |
case back feature | display |
case diameter | 41.5 |
case material | two tone steel yellow gold |
collection | speedmaster |
dial color | silver |
front crystal material | sapphire |
lug width | 20 |
other collection | heritage models - speedmaster ’57 |
sub collection | speedmaster '57 |
tachymeter | |
water resistance bar | 10 |
water resistance meter | 100 |
Calibre specifications
balance | silicone spring |
balance | free sprung |
barrels count | 2 |
bidirectional winding | |
calibre no | 9300 |
chronograph | |
chronograph operation | column wheel |
chronometer | cosc |
date function | |
escapement | co-axial |
power reserve | 60h |
rapid hour hand setting | |
small seconds | |
winding mechanism | automatic |