Hamilton 992B Railroad Pocket Watch CA1951 | 16 Size, 21 Jewel, Adj. 6 Positions Heat/Cold

Hamilton 992B Railroad Pocket Watch CA1951 | 16 Size, 21 Jewel, Adj. 6 Positions Heat/Cold

Details:
MAKE
Manufacturer: Hamilton Watch Co.
Model: 992B
Country: USA
Type: Man’s
Serial #: C346289
Circa Date: 1951
CASE
Size: 16 Size.
Style: Open Face.
Material: Stainless Steel.
Decorations:  Plain.
Conditions:  C  3  (The case is in Very Good condition)
DIAL
Color: Off White.
Type: Melamine.
Numerals: Arabic Numerals.
Hands: Spade Hands.
Conditions:  D  3-45  (The dial is in Very Good condition – Multiple Hairlines)
MOVEMENT
Jewels: 21 Jewels.
Setting: Lever Set.
Escapement: Lever Escapement.
Adustments: 6 Adjustements, heat/cold

Watch adjustment is the process of correcting those errors in the watch that cause variation in time keeping. These include temperature influences, variation in driving power and position of the watch with respect to mechanism such as pendant up or dial up.

Watches with better calibre movements will have been adjusted at the factory for a number of positions.  The usual array of positions include a subset of the following positions:

1. Dial up   2. Dial down  3. Bow up  4. Bow down (Not required by Railroad) 5. Bow left  6. Bow right

These positional adjustments are intended to insure that the watch is just as realiable and accurate regardless of the position in which it is stored or used.

In addition to positional adjustments, the watch may also be adjusted for Temperature(heat/cold).  Temperature affects different elements in different ways.  Heat will cause some metals to expand faster than others, and cold may cause some metals to contract more than others.  A watch that is adjusted to temperatures will usually include some combination of metals that allow the watch to maintain its proper functionality within a larger range of temperatures than one that is not adjusted for temperature.

Material: Nickel.
Layout: ¾-Plate Layout.
Signed:  Yes.
Conditions:  M  3  (The movement is in Very Good condition)