lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Watch size chart·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Sinn/105 St Sa
SpecStudio
Sinn 105 St Sa
Click to inspect
Sinn · 105 St Sa

Sinn 105 St Sa

$1,789Stock unknown

Case

Diameter
41mm
Thickness
11.9mm
Lug width
20mm
Material
Case made of stainless steel, bead-blasted
Water resistance
200m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Sellita SW220-1
Type
Automatic

Sellita

Sellita's day-date automatic caliber, the equivalent of the ETA 2834-2. Adds day and date complications to the proven SW200-1 base architecture while maintaining the same 28,800 vph beat rate and 38-hour power reserve. The additional 0.45mm of height over the SW200-1 accommodates the day display mechanism. A reliable workhorse for brands needing a day-date Swiss automatic at competitive pricing.

Alternatives

Market

Retail$1,789

No forum listings recorded for this watch yet.

Retail stock & market context

Sinn on the secondhand market

Not enough to call it

21 matched watches

Year-by-year readings →

Similar watches

Luminox Automatic Sport Timer, 42mm, Limited Edition Bronze

Luminox

Automatic Sport Timer, 42mm, Limited Edition Bronze

42mm · Automatic$1,695

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

Marathon

OSAR-D (Original SAR with Date) Automatic 41mm

41mm · Automatic$1,800

Redwood Watches Marine Engineer

Redwood Watches

Marine Engineer

40mm · Automatic$439

Circula Watches AquaSport II

Circula Watches

AquaSport II

40mm · Automatic$990

Squale 1521

Squale

1521

42mm · Automatic$1,265

Squale 1545

Squale

1545

40mm · Automatic$930

View all alternatives

Community

“
Summary

The Sinn 105 St Sa is an automatic watch, with a 41mm case made of stainless steel, bead-blasted case, 11.9mm thick, powered by the Sellita SW220-1 movement. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $1,789.

Open the discussion

On real wrists

No shots yet. Show how it wears.

Related

Ask the communityStart a discussion about the 105 St Sa: get takes from other collectors.Ask →

Discussion