Skip to content
Sinn Spezialuhren 903 H4

Sinn Spezialuhren 903 H4

Manual WindingSteel

Ref. 903.080

Collection: 903Case size: 41mmMovement: Lemania 1883

The Sinn 903 H4, reference 903.080, is a chronograph in a 41 mm steel case with polished and satinised finishes. Manual winding distinguishes calibre Lemania 1883. A moon phase display shares the UV-resistant grey electroplated dial with a hand date and small seconds under sapphire crystal. The central stopwatch hand has a red triangular tip. The case measures 13.2 mm thick, has a see-through back and is water resistant to 100 metres. A logarithmic slide-rule scale marks the interior rotating bezel.

Add to my inventory

Free account required - pre-fills all specs automatically

Last updated 23 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

CASE

Diameter

41mm

Thickness

13.2mm

Lug Width

22mm

Case Material

Steel

Water Resistance

100m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Manual Winding

Caliber

Lemania 1883

Frequency

21,600 vph (3 Hz)

Jewels

17 jewels

DIAL

Dial Color

Grey

FEATURES & COMPLICATIONS

ChronographDateDisplay backLuminous handsLuminous indicesMoon phaseRotating BezelSmall seconds

More from Sinn Spezialuhren

Show all →

Other watches with the Lemania 1883 calibre

Show all →

FOR WATCH DEALERS

Trading the Sinn Spezialuhren 903 H4?

Clone any catalog watch into your stock, sync it to Chrono24 and eBay, and invoice it with your own tax settings.