The Titanium Field Guide

Synchron Ti300M Sealab (Limited Edition)

The Synchron Ti300M Sealab (Limited Edition) is a current-production diver watch with a Grade 5 titanium case. At 50 g it sits among the lighter diver watches in the guide, and is priced close to the $1,300 median for the category.

Titanium diver watchesUnder $3,000MicrobrandLightweightLightest, rankedGrade 5 titanium
Price
$1,390
Titanium
Grade 5
Weight
50 g (with strap)
Water resistance
300 m
Type
Diver
Case diameter
41.0 mm
Thickness
11.9 mm
Lug-to-lug
45 mm
Origin
Switzerland
Movement
Automatic (adjusted 4 positions)
Caliber
La Joux-Perret G100 (Soigne)
Power reserve
68 h
Complications
Time only
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Rubber Tropic strap
Crystal
Flat sapphire, triple AR
Display back
No
Dial
Orange (Sealab)
Dial colours
Orange
Lume
Super-LumiNova X1
Availability
Offered
Status
Pre-order (limited edition of 500); maker page pending
Not published
Reference, Surface treatment, Caseback, Titanium bracelet Help verify
Medium confidence Verified Jun 2026 Source: Synchron (maker; spec block) / The Time Bum (Sealab Ti300M) / Fratello (Synchron Sealab) Maker / listing ↗ Suggested by u/Potential-Peace6416
Facts are free to cite with a link.
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More titanium watches from Synchron

Synchron Ti300M PoseidonSynchronTi300M Poseidon$1,29041.0 mm11.9 mm thick50 gDiver

Frequently asked questions

What grade of titanium is the Synchron Ti300M Sealab (Limited Edition)?

The Synchron Ti300M Sealab (Limited Edition) has a Grade 5 titanium case. It is recorded at medium confidence pending a maker-stated grade.

What size is the Synchron Ti300M Sealab (Limited Edition)?

It is 41.0 mm in diameter, 11.9 mm thick, 45 mm lug to lug, and water resistant to 300 m.

How much does the Synchron Ti300M Sealab (Limited Edition) weigh?

About 50 g (w/ strap).

How much does the Synchron Ti300M Sealab (Limited Edition) cost, and is it available?

It is current-production and lists from $1,390.

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