Watt is a lunar

Moon

The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

 crater

Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 that is located in the southeastern part of the Moon

Moon

The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

. The northwestern third of the crater rim has been completely overlain by the same-sized Steinheil

Steinheil (crater)

Steinheil is a lunar impact crater that is located in the rugged highlands in the southeastern part of the Moon. It forms a prominent crater pair with the similar-sized Watt, which it partly overlies to the southeast. To the northwest is the large walled plain Janssen. Due to the location of this...

, leaving much of the interior floor covered with the outer rampart of ejecta from the latter formation. The remainder of the rim of Watt is somewhat jagged in appearance, with an inward bulge along the southeast rim and a pair of small outward projections to the northeast. The rim is otherwise relatively sharply defined, with only a minor amount of wear.

Nearby craters of note include Biela

Biela (crater)

Biela is a lunar impact crater that is located in the rugged highlands of the southeastern Moon. The crater lies to the east of Rosenberger, to the southeast of the Watt–Steinheil double crater....

 to the south-southeast, Rosenberger

Rosenberger (crater)

Rosenberger is an old lunar impact crater in the southeastern part of the Moon. Due to foreshortening, this crater appears oval when viewed from the Earth. From orbit, however, the crater rim is nearly circular....

 to the southwest, and the walled plain Janssen

Janssen (lunar crater)

Janssen is an ancient impact crater located in the highland region near the southeastern lunar limb. The entire structure has been heavily worn and is marked by many lesser crater impacts. The outer wall is breached in multiple locations, but the outline of the crater rim can still be observed...

 to the northwest past Steinheil. This crater should not be confused with the small Watts

Watts (crater)

Watts is a small lunar crater that is located at the extreme northern edge of the Mare Fecunditatis. Just one crater diameter to the northwest is the irregular da Vinci. Farther to the south is the larger crater Taruntius....

located to the north, just past the lunar equator.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Watt.

Watt	Latitude	Longitude	Diameter
A	50.3° S	46.4° E	10 km
B	50.1° S	48.0° E	6 km
C	50.0° S	51.5° E	24 km
D	50.3° S	55.2° E	32 km
E	49.7° S	55.3° E	10 km
F	50.5° S	54.3° E	16 km
G	50.9° S	58.7° E	13 km
H	51.2° S	57.2° E	16 km
J	51.6° S	58.3° E	18 km
K	51.4° S	55.9° E	8 km
L	52.6° S	57.6° E	32 km
M	53.1° S	59.9° E	42 km
N	53.6° S	58.7° E	11 km
R	51.0° S	47.5° E	12 km
S	52.2° S	47.8° E	6 km
T	51.6° S	51.0° E	4 km
U	52.0° S	51.7° E	5 km
W	51.1° S	51.9° E	7 km