Bulova 2182: Full Calendar Precision in a Tuning Fork Timepiece

The Bulova 2182 is one of the most advanced and practical movements in the legendary Accutron 218 Series. Introduced in the late 1960s, the 2182 added a day-date complication to the already impressive tuning fork technology, providing not only unparalleled accuracy but also excellent daily functionality. It was widely adopted across Bulova’s Accutron line, particularly in dress watches and professional timepieces, and remains highly collectible today.

The Accutron Tuning Fork Revolution

Before quartz became mainstream, Bulova's Accutron watches were considered the most accurate timepieces available to the public. They didn’t tick—they hummed. Powered by a tiny tuning fork vibrating at 360 Hz, these movements used an index wheel and pawl system to translate vibration into precise gear movement.

This technology allowed for:

• Smooth sweeping seconds hands

• ±1–2 seconds/day accuracy when properly regulated

• A distinctive "hum" sound, unique to tuning fork movements

The 218 series was an evolutionary leap over the earlier Accutron 214, bringing practical enhancements such as a side crown and improved servicing access.

Key Features of the 2182

The Bulova 2182 built upon the 218 platform by adding a full calendar display, showing both the day of the week and the date.

Technical Specifications:

• Movement type: Tuning fork electronic (non-quartz)

• Frequency: 360 Hz

• Calendar: Day and date (usually at 3 o'clock)

• Crown position: 4 o’clock for ease of use

• Battery: Originally 1.35V mercury (now replaced by regulated 387S or Accucell-1)

• Jewels: Typically 13 to 17

• Power reserve: ~12–14 months per battery

• Accuracy: ±2 seconds per day (when tuned and serviced)

• Shock protection and anti-magnetic shielding

Most 2182 models feature semi-quickset date and day adjustment via the crown, making them very user-friendly.

Design and Watch Applications

Watches using the 2182 movement were designed with both style and function in mind. They were sold under the Accutron name and were often higher-end models within Bulova’s catalog.

Common design elements include:

• Round or tonneau-shaped cases in stainless steel, gold plate, or solid gold

• Day and date windows framed at 3 o’clock

• Applied indices or baton markers for a sleek, mid-century look

• Leather straps or integrated metal bracelets

• Luminous hands and tritium-lumed dials (especially in sportier models)

Some versions were branded “Railroad Approved”, highlighting their precision in demanding use cases.

Servicing and Reliability

While very accurate, the 2182 is also more complex than standard quartz or mechanical movements. It should only be serviced by technicians experienced in tuning fork technology.

Service Tips:

• Use only regulated batteries—incorrect voltage can burn out the coils.

• Delicate components, especially the index wheel and pawl fork, must be handled with extreme care.

• Clean contacts and properly lubricate the gear train during servicing.

• Most 2182s still run well today if kept clean and dry.

Replacement parts, while still available through specialized sources, are increasingly limited—adding to the value of a properly maintained 2182.

Collector Interest

The Accutron 2182 is a favorite among collectors of electronic watches and space-age design. It combines groundbreaking technology with everyday practicality, making it highly wearable even today.

Why collectors love the 2182:

• Iconic tuning fork hum and smooth second hand

• Useful day-date complication

• Durable, mid-century case styles

• Historical importance in the pre-quartz era

• Still serviceable with care and expertise

Final Thoughts

The Bulova 2182 is a brilliant fusion of mid-century style and technological innovation. With its tuning fork accuracy and complete calendar display, it became the perfect companion for professionals and enthusiasts alike. Today, it remains a prized movement for those who appreciate engineering, design, and the hum of horological history.