Big Idea Design Ti Daily Solar
Big Idea Design makes the Ti Daily Solar as a yearly edition with RZE Watches, and the 2025 run of 300, each numbered on the caseback, went green: a two-tone textured dial with a smooth chapter ring and a lighter green canvas strap. The case is Grade 2 titanium, 38 mm across, 11 mm thick and 44 mm lug to lug, with a timer bezel, a sapphire crystal and 100 m of water resistance, and the head weighs 34 g. It runs on the Miyota 2070 solar movement, which lets the dial stay solid while still passing light to the cell, and it runs up to four months in the dark on its reserve. Swiss Super-LumiNova fills the hands and hour markers. The canvas strap has titanium hardware, and a Grade 2 titanium bracelet with RZE's UltraHex coating and a tool-free micro-adjust clasp is optional. It costs $275.
Written 28 September 2026 from Big Idea Design.
- Reference
- TIDAILY25
- Type
- Other
- Case diameter
- 38.0 mm
- Thickness
- 11 mm
- Lug-to-lug
- 44 mm
- Origin
- United States
- Movement
- Solar quartz
- Caliber
- Miyota 2070
- Complications
- Date
- Colour
- Grey
- Surface treatment
- Brushed titanium
- Finish technology
- Natural finish
- Caseback
- Titanium
- Nickel-free
- Maker states none
- Bracelet / strap
- Two-piece canvas strap with titanium hardware; Grade 2 titanium bracelet with UltraHex coating optional
- Matching bracelet
- Optional (or strap)
- Micro-adjust clasp
- Yes
- Crystal
- Sapphire
- Display back
- No
- Dial
- Green
- Dial colours
- Green
- Lume
- Super-LumiNova
- Availability
- Offered
- Status
- Limited run of 300 for 2025, each numbered on the caseback; sold out at the maker
- Not published
- Power reserve, Hardness, Construction
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Frequently asked questions
Is the Big Idea Design Ti Daily Solar nickel-free?
On the maker's published specification, nothing that touches the skin is steel: the case, caseback, crown and strap buckle are all non-steel. The guide records what the maker publishes and has not tested the watch, so if you react to nickel, confirm the contact points with the maker before buying.
What grade of titanium is the Big Idea Design Ti Daily Solar?
Grade 2, as stated by the maker. The caseback is titanium too.
What size is the Big Idea Design Ti Daily Solar?
The case is 38 mm across, 11 mm thick and 44 mm from lug to lug. It is water resistant to 100 m.
How much does the Big Idea Design Ti Daily Solar weigh?
About 34 g for the watch head alone.
How much does the Big Idea Design Ti Daily Solar cost, and is it available?
It is in production, at a list price of $275.
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