Engineer Master II Union Pacific Big Boy

Ball Watch · Official Railroad Watch
- Lug width
- 20 mm
- Case diameter
- 46 mm
- Reference
- NM1080C-L2-BK
- Family
- Official Railroad Watch
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 46 mm of case and 20 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- With a 46 mm case on a 20 mm lug width, any 20 mm band fits without adapters.
Other Official Railroad Watch references
- Engineer Master II GCTGM2086C-L2-BK
20 mm - Trainmaster Standard TimeNM3888D-PG-LCJ-WH
20 mm - Engineer Master II Union Pacific Big BoyNM1080C-S2-BK
20 mm
Same lug width, other Ball Watch lines
- Engineer Master II Diver WorldtimeDG2022A-SAJ-WH
20 mm - Engineer II Chronometer Red LabelNM2026C-LCJ-WH
20 mm - Fireman Storm Chaser DLC Glow / Black / RubberCM2192C-P3-BK
20 mm - Fireman Storm Chaser DLC Glow / Silver / RubberCM2192C-P2-SL
20 mm - Engineer II Chronometer Red LabelNM2028C-SCJ-WH
20 mm - Engineer II Chronometer Red LabelNM2028C-LCJ-BK
20 mm
Vintage Black Calfskin Leather Strap
Saffiano Black Strap Tone Stitching
Dark Brown Saffiano Strap with Ecru Stitching
Black Saffiano Rubber Strap
Natural Calfskin NATO Strap