Jaeger-leCoultre Master Compressor Diving Alarm Navy Seals User Manual

Introduction

Congratulations on the purchase of your Jaeger-LeCoultre 

watch, and thank you for your confidence.

Produced in partnership with the elite divers of the American 

armed forces, the United States Navy SEALs, this new genera-

tion of diving watches is distinguished by a case with extreme 

high-pressure resistance. A genuine professional diving tool 

inspired by the equipment of this special unit, the Master 

Compressor Diving Alarm Navy SEALs offers perfect read-

ability thanks to oversized and luminescent-coated numerals, 

indexes and hands. The unidirectional bezel enables elapsed 

diving times to be calculated via its luminescent reference  

triangle. 

Please check through the operating instructions for your 

Jaeger-LeCoultre timepiece: we hope that you will be very 

happy with it.

Accuracy

Accuracy is ensured by the balance, which completes 

28,800 vibrations per hour. 

Despite all the care with which the Manufacture 

Jaeger-LeCoultre master watchmakers have made and 

assembled your watch, its accuracy is subject to the influence 

of gravity, magnetic fields, impacts and ageing of the oils. 

Watch accuracy is measured by rate regularity in a variety 

of positions. 

The nature of your constitution or lifestyle may lead to slight 

irregularities. If you observe irregular running of your watch, 

you are advised to take it to an authorised Jaeger-LeCoultre 

retailer, who will make any necessary adjustments.

Water-resistance

Jaeger-LeCoultre watches are water-resistant to 3, 5, 10, 20, 30 

or 100 atm, depending on the model (see technical specifica-

tions). This property can be identified by the 

 symbol 

engraved on the case-back. This means that your timepiece 

has been tested to an immersion pressure equivalent to 30, 

50, 100, 200, 300 or 1000 metres, according to the number 

of atmospheres shown beside the aforementioned symbol  

(1 atm = 10 metres). 

You can use your watch while swimming or diving from the 

edge, but not from a diving board. Please also note that 

leather straps are not suited to water sports.

It is essential to have your watch’s water-resistance regu-

larly checked by an authorised Jaeger-LeCoultre retailer, and  

definitely before a period of intensive use.

The «1000 Hours Control» test  

by Jaeger-LeCoultre

 Jaeger-LeCoultre subjects each of its watches to the rigour-

ous “1000 Hours Control” test programme. Unique in its kind, 

this programme consists of 1000 hours of comprehensive, 

stringent checks. 

The “1000 Hours Control” seal or marking affixed or 

engraved on the back of your watch certifies that it has 

undergone this observation programme in our laboratories 

and has passed all the tests, relating to rate regularity, tem-

perature and atmospheric pressure, resistance to impacts 

and magnetic fields, as well as water-resistance. Your watch 

is therefore capable of withstanding the trials awaiting it in 

everyday life when you wear it on your wrist.

The criteria of the “1000 Hours Control” programme 

go far beyond the official timekeeping test stand-

ards, which concern only part of the movement. 

Jaeger-LeCoultre tests not only the movement before casing 

it within the watch, but also the watch as a whole.

M

aster

 C

oMpressor

 D

iving

 a

larM

 n

avy

 seal

s

1  Minute hand

2  Crown A

3  Date window

4  Crown B

5  Alarm indicator

6  Seconds hand

7  Hour hand

1

5

2

4

3

7

6

M

aster

 C

oMpressor

 D

iving

 a

larM

 n

avy

 seal

s

 - English 

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