Big Boy in Tokyo, Japan, is promoting a ¥2,079 deal on Japanese Wagyu sirloin steak. The autumn menu features Grade 4 or higher domestic Japanese Wagyu, cooked over a high-temperature open flame.
For travelers mapping a steak-focused meal route in Minato City, Big Boy and Victoria Station offer a straightforward name to slot in. The fair is scheduled to run across 167 restaurants from September 15, 2026, through early October, although prices at Big Boy Dining Waseda may differ.
The 80-gram sirloin steak costs ¥1,890 before tax, or ¥2,079 including tax. Other choices include a 160-gram steak for ¥3,289 including tax, a sirloin and Big俵 hamburger combination from ¥2,739, and a triple grill with chicken and hamburger for ¥2,739 including tax.
About the Autumn Wagyu Menu

The sirloin is grilled directly over a 300°C flame to bring out its tender texture and rich, gently sweet fat. It is served with baked potato and broccoli, while combination plates add Big Boy’s hamburgers or grilled chicken for a fuller meal.



Highlights
- 80-gram Japanese Wagyu sirloin: ¥1,890 before tax, or ¥2,079 including tax.
- 160-gram Japanese Wagyu sirloin: ¥2,990 before tax, or ¥3,289 including tax.
- Sirloin cut steak and Big俵 hamburger: ¥2,490 before tax, or ¥2,739 including tax for the 150-gram option.
- Triple grill with 80 grams of sirloin, 100 grams of grilled chicken, and a 100-gram hand-formed hamburger: ¥2,490 before tax, or ¥2,739 including tax.
- The fair is planned for 167 Big Boy and Victoria Station restaurants as of September 9, 2026.
Menu & Event Details
| Item | Details |
|---|---|
| Name | Autumn Treat Japanese Wagyu Sirloin Steak Fair |
| Menu / items | Sirloin steak; sirloin cut steak and Big俵 hamburger; sirloin cut steak triple grill; sirloin cut steak and hand-formed hamburger |
| Release date | September 15, 2026 |
| Period | September 15, 2026, through early October 2026 |
| Location | Big Boy and Victoria Station restaurants in Japan; planned at 167 locations |
| Stores | Big Boy; Victoria Station; Big Boy Dining Waseda has different pricing for some items |
| Price | Sirloin steak, 80g: ¥1,890 before tax / ¥2,079 including tax; sirloin steak, 160g: ¥2,990 before tax / ¥3,289 including tax; sirloin cut steak and Big俵 hamburger, 150g: ¥2,490 before tax / ¥2,739 including tax; 200g: ¥2,650 before tax / ¥2,915 including tax; 250g: ¥2,850 before tax / ¥3,135 including tax; sirloin cut steak triple grill: ¥2,490 before tax / ¥2,739 including tax; sirloin cut steak and hand-formed hamburger: ¥2,330 before tax / ¥2,563 including tax |
Before you buy
- When can I buy the Japanese Wagyu sirloin menu?
- The menu goes on sale at participating Big Boy and Victoria Station restaurants on September 15, 2026, and is planned to remain available through early October.
- How much is the Japanese Wagyu sirloin steak?
- The 80-gram steak is ¥2,079 including tax, while the 160-gram steak is ¥3,289 including tax.
- Where can I get the autumn Wagyu menu?
- The fair is planned at 167 Big Boy and Victoria Station restaurants. Prices for some items may differ at Big Boy Dining Waseda.