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Big Idea Design Ti Daily Solar

TIDAILY25

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.

All Big Idea Design watchesOther watchesUnder $500MicrobrandUnder 11 mm thickLightweightLightest, rankedTitanium bracelet availableMicro-adjust braceletSolarCompact (38 mm and under)
Price
$275
Material
Titanium
Grade / type
Grade 2
Weight
34 g (head only)
Water resistance
100 m
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
High confidence Verified Sep 2026 Source: Big Idea Design
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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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