Serica
5303 Diving Chronometer
Ref. 5303-1
2021–present · 39mm · caliber Soprod M100 COSC -- self-winding, chronometer-certified, 28,800 bph, 42h PR, 25j
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Mid-tier supplier movement
Versatile size: fits most wrists (6–7.5 in / 15–19 cm)
39 mm case. 20 mm lug width. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.
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