18mm to 22mm Adapters for Casio F-91W, Silver Black Gold Stainless Steel, Set of 2, Spring Bars Included, Fits F91W A158W A168W

18mm to 22mm Adapters for Casio F-91W
Stainless steel lug converters in silver, black or gold, set of 2

The Casio F-91W has an 18mm lug. Stepping up to a 22mm strap gives one of the most recognizable watches ever made a bolder, more proportional look, and these adapters unlock the whole 22mm strap market for your F-91W.

Choose from three finishes, brushed silver, matte black, or gold tone, and each one gives the same watch a completely different look.

What’s included

• Set of 2 stainless steel adapters (one per side)
• Spring bars

Specs

• Material: 316L stainless steel
• Converts: 18mm lug to 22mm strap width
• Finishes: brushed silver, matte black PVD, or gold tone
• Works with: standard 22mm straps that attach with spring bars
• Installation: spring bar tool recommended

Compatible Casio models

• Casio F-91W, including the F-91WC and F-91WM
• Casio A158W and its variants, including the gold A158WETG
• Casio A159W
• Casio A168W, A168WA and A168WG

Not sure if your model fits? Check our Casio lug size guide or message us with your model number. We reply within 24 hours.

Finish guide

• Silver: a clean, minimal look on any Casio case color
• Black: an all-black stealth look on the black F-91W
• Gold: an unexpected luxury accent that stands out on the black F-91W

The black F-91W with gold adapters
Gold hardware on a black F-91W creates a bold two-tone contrast that looks far more premium than you’d expect. If you own a black F-91W, gold adapters are well worth a try.

Why go from 18mm to 22mm on the F-91W?
The F-91W case is about 35mm wide, and a 22mm strap fills that width more completely than the stock 18mm band. The difference is immediately noticeable: the watch looks more intentional and considered.

22mm is also one of the largest strap categories out there, with more NATO, leather, and Milanese mesh options than most other widths.

New to adapters? Read our adapter guide for everything you need to know.

Installation

1. Remove your F-91W’s original strap using a spring bar tool.
2. Place an adapter between your watch’s lugs and secure it with an included spring bar.
3. Repeat on the other side.
4. Attach your new 22mm strap to the adapters.

Installation takes just a few minutes, and you can always switch back to your original strap.

Shipping
Ships from Santa Monica, California within 1 to 3 business days.