Ball Watch Company Engineer Master II
Military/aviation heritage sub-collection
4 references
“Differs” marks a spec with different recorded values. — means not recorded.
| Spec | DM2280A-S1C-BKR Engineer Master II Diver Chronometer | DM3308A-SCJ-BK Engineer Master II Skindiver Heritage | NM2638C-L2J-BK Engineer Master II Snoopy Flying Ace | NM3000C-S2C-BK Engineer Master II Endurance 1917 |
|---|---|---|---|---|
| Case size Differs | 42 mm | 42 mm | 46 mm | 40 mm |
| Lug to lug Differs | 50 mm | 53 mm | 53.5 mm | 46.6 mm |
| Thickness Differs | 13.5 mm | 15.2 mm | 12.35 mm | 13.6 mm |
| Lug width Differs | 21 mm | 22 mm | 22 mm | 20 mm |
| Case Differs | Stainless steel, round | Stainless steel, round | Stainless steel, sapphire display caseback, round | Stainless steel with Mu-metal shield, round |
| Bezel Differs | Sapphire Bidirectional rotating, inner bezel | Ceramic, luminous Unidirectional rotating | Not recorded | Not recorded |
| Crystal | Sapphire, anti-reflective | Sapphire, anti-reflective | Sapphire, anti-reflective | Sapphire, anti-reflective |
| Water resistance Differs | 300 m | 300 m | 100 m | 100 m |
| Caliber Differs | BALL RR1101-C | BALL RR1102-C | BALL RR2102 | BALL RR1103-C |
| Movement type Differs | Automatic | Automatic | Manual | Automatic |
| Complications Differs | date (magnified) | day, date | subsidiary seconds | date (magnified) |
| Dial | Black | Black | Black | Black |
| Lume Differs | Tritium gas tubes (H3), 36 micro tubes on hands/dial/inner bezel | Tritium gas tubes (H3), 15 micro tubes on hands/dial | Tritium gas tubes (H3), 13 micro tubes on hands/dial | Tritium gas tubes (H3), 17 micro tubes on hands/dial |
| Bracelet Differs | Stainless steel, folding buckle | Stainless steel, folding buckle | Calf leather strap, pin buckle | Stainless steel, folding buckle |
| Limited edition Differs | Limited to 1,000 pieces (marketed as the 'Diver Rainbow' edition) | Not recorded | Limited to 410 pieces | Limited to 1,000 pieces, free name engraving offered |