Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Oblvlo NM Automatic?

At MSRP the Oblvlo NM Automatic is the cheaper of the two at $210, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,558 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Oblvlo NM Automatic?

The Oblvlo NM Automatic wears larger at 40mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Oblvlo NM Automatic?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 50m for the Oblvlo NM Automatic.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Oblvlo NM Automatic?

The Oblvlo NM Automatic carries a 50-hour power reserve against 42 hours on the Serica Ref. 5303 Diving Chronometer.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Oblvlo NM Automatic?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Oblvlo NM Automatic uses the Seiko NH39.

Side by side

Serica Ref. 5303 Diving ChronometervsOblvlo NM Automatic

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Serica Ref. 5303 Diving Chronometer

5303-1-diving-chronometer

MSRP $1,768

Oblvlo NM Automatic

MSRP $210

At a glance

13 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

NM Automatic40mm

Power Reserve

Ref. 5303 Diving Chronometer42h

NM Automatic50h

Water Resistance

Ref. 5303 Diving Chronometer300m

NM Automatic50m

MSRP

Ref. 5303 Diving Chronometer$1,768

NM Automatic$210

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Black

Movement

4 specs

Caliber

M100 COSC

Seiko NH39

Power Reserve

42h

50h

Jewels

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$210

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