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Ball Watch — Official Railroad Watch

Also known as: Official Railroad Watch

DocumentedSupported by at least one credible specialist source.

Record status

Documented family · partial

Maker / issuer

Ball Watch

Official Railroad Watch is a wristwatch family made by Ball Watch. Recorded movements are Ball Watch caliber RR1105C and Ball Watch caliber RR1102, with functions including hours, minutes, small seconds, date, chronometer and seconds.

The sampled references record case diameters of 39.7–46 mm, heights of 10.5–13.3 mm and cases in rose gold and stainless steel. Reference examples: ref. NM3888D-PG-LCJ-WH (Trainmaster Standard Time; 39.70 mm); ref. NM1080C-L2-BK (Engineer Master II Union Pacific Big Boy; 46.00 mm). 1 of the sampled references is recorded as limited editions (NM1080C-L2-BK: 999 units).

Evidence at a glance

Linked sources
2
Photograph views
4
Catalogue references
3

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Physical characteristics

Crystal
Sapphire
Case back
Open, Closed
Case shape
Round
Case height
10.5–13.3 mm
Case materials recorded
Rose Gold, Stainless Steel
Case diameter (sampled references)
39.7–46 mm

Technical characteristics

Functions recorded
Hours, Minutes, Small Seconds, Date, Chronometer, Seconds, Day
Movements recorded
Ball Watch caliber RR1105C · Ball Watch caliber RR1102

Design

Hands
Spade, Alpha
Hour markers
Arabic Numerals, Stick / Dot
Dial colours recorded
White, Black

Identification

How to identify
The reference number, usually found on the case back, between the lugs or on papers, ties a watch to one of these configurations; movement calibre, case material and dial together separate references within the family.
Family as listed
Official Railroad Watch
References sampled
NM3888D-PG-LCJ-WH — Trainmaster Standard Time · NM1080C-L2-BK — Engineer Master II Union Pacific Big Boy
Distinguishing features
Reference number, movement calibre, case material and dial colour together
Representative reference
GM2086C-L2-BK
Source note
All figures follow WatchBase and describe only the references sampled here; they have not been checked against the manufacturer's archive. WatchBase, an online database of watch references, lists 4 references under this family name; this entry summarises 2 of them, chosen across that list, including the reference originally recorded for this entry. The reference list, calibres and case specifications summarised above come from WatchBase; the manufacturer's own archive or a printed reference work should be consulted before treating any detail as definitive. WatchBase does not record production years for the references sampled here, so the family's introduction date and production span remain Research Required.

Catalogue references

Varieties

  • Ref. NM3888D-PG-LCJ-WH — Trainmaster Standard Time

    Ball Watch caliber RR1105C; 39.70 mm rose gold; White dial. Source: WatchBase.

  • Ref. NM1080C-L2-BK — Engineer Master II Union Pacific Big Boy

    Ball Watch caliber RR1102; 46.00 mm stainless steel; Black dial. Source: WatchBase.

Research required

  • Research Required: confirm the family's introduction date, full reference list and production span against the manufacturer's archive or a printed reference; WatchBase figures cover only the sampled references.
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