Watchatlas

SERICA / 5303

SERICA 5303

Collection profile · 2021

The SERICA 5303 is a 300 m diving chronometer distinguished by a double-scale bezel that separates hours and minutes. Since 2023 it has used SERICA's COSC-certified M100 calibre and an antimagnetic soft-iron inner case.

Why it matters

The 5303 translates SERICA's restrained French design language into a serious dive platform without losing its unusually elegant proportions and dial vocabulary.

Key references

SERICA 5303-1 Enamel Black

5303-1

Enamel Black — Black-enamel 5303 diving chronometer; SERICA specifies 300 m water resistance.

Official brand source

SERICA 5303-2 Porcelain White

5303-2

Porcelain White — White-dial 5303 diving chronometer in the current official collection.

Official brand source

SERICA 5303-3 Crystal Blue

5303-3

Crystal Blue — Crystal Blue ceramic-bezel variation introduced by SERICA in 2022.

Official brand source

Collection timeline

  • 2021 — SERICA introduces the Ref. 5303 diving watch and its bi-material double scale.
  • 2022 — The 5303-3 Crystal Blue adds a signature ceramic colourway.
  • 2023 — SERICA equips the 5303 with the COSC-certified M100 calibre and an antimagnetic soft-iron inner case.

FAQ

When was the SERICA 5303 introduced?

SERICA introduced the Ref. 5303 in 2021.

Is the 5303 a chronometer?

The current 5303 uses SERICA's COSC-certified M100 calibre.

Official collection ↗

Back to brand

More from SERICA

  • 4512 — The SERICA 4512 is the successor to the brand's 2019 W.W.W field watch. Introduced in 2020, it brought reworked case finishing and 20 bar water resistance to SERICA's military-influenced field-watch idea.
  • 8315 — The SERICA 8315 is the brand's GMT travel chronometer, introduced in 2022. Its current Enamel Black and Desert Red executions apply SERICA's compact, tool-watch approach to a dual-time display.

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