The Titanium Field Guide

Speake-Marin Openworked Sandblasted Titanium

414217440

The Speake-Marin Openworked Sandblasted Titanium is a current-production dress watch with a grade 5 titanium case, finished with sandblasted; openworked. It is priced well above the $643 median for the category. The caseback is open, so the movement is visible.

All Speake-Marin watchesWatch dress watchesUnder 11 mm thickGrade 5 titaniumDisplay back
Price
≈$29,419 (CHF 23,600)
Material
Titanium
Grade / type
Grade 5
Water resistance
30 m
Reference
414217440
Type
Dress
Case diameter
42.0 mm
Thickness
10.5 mm
Origin
Switzerland
Movement
Automatic (micro-rotor)
Caliber
Speake-Marin SMA01
Power reserve
52 h
Complications
Time only
Colour
Grey
Surface treatment
Sandblasted; openworked
Finish technology
Natural finish
Caseback
Sapphire
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Strap
Crystal
Sapphire
Display back
Yes
Dial
Sandblasted openworked
Availability
Offered
Status
Current
Not published
Lug-to-lug, Weight, Hardness, Construction, Matching bracelet, Lume
High confidence Verified Sep 2026 Source: Speake-Marin (maker) / Monochrome Also sold as413817440 Spec checksGrade Jul 2026Price Sep 2026
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Frequently asked questions

What is the case material of the Speake-Marin Openworked Sandblasted Titanium?

The Speake-Marin Openworked Sandblasted Titanium has a grade 5 titanium case with a sapphire caseback. This is confirmed against the maker spec.

What size is the Speake-Marin Openworked Sandblasted Titanium?

It is 42.0 mm in diameter, 10.5 mm thick, and water resistant to 30 m.

How much does the Speake-Marin Openworked Sandblasted Titanium cost, and is it available?

It is current-production and lists from $29,419.

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