Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the William Wood Hollywood Fire Rescue Centennial Watch?

At MSRP the William Wood Hollywood Fire Rescue Centennial Watch is the cheaper of the two at $820, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $948 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the William Wood Hollywood Fire Rescue Centennial Watch?

The William Wood Hollywood Fire Rescue Centennial Watch wears larger at 41mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 2mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the William Wood Hollywood Fire Rescue Centennial Watch?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 100m for the William Wood Hollywood Fire Rescue Centennial Watch.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the William Wood Hollywood Fire Rescue Centennial Watch?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the William Wood Hollywood Fire Rescue Centennial Watch.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the William Wood Hollywood Fire Rescue Centennial Watch?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the William Wood Hollywood Fire Rescue Centennial Watch uses the Seiko NH35.

Side by side

Serica Ref. 5303 Diving ChronometervsWilliam Wood Hollywood Fire Rescue Centennial Watch

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

William Wood Hollywood Fire Rescue Centennial Watch

hollywoodcentennialwatch

MSRP $820

At a glance

13 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Hollywood Fire Rescue Centennial Watch41mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Hollywood Fire Rescue Centennial Watch40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Hollywood Fire Rescue Centennial Watch100m

MSRP

Ref. 5303 Diving Chronometer$1,768

Hollywood Fire Rescue Centennial Watch$820

Full specifications

Case

5 specs

Diameter

39mm

41mm

Thickness

12.2mm

15mm

Lug-to-Lug

46.5mm

49mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

100m

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Enamel Black

Standard

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

M100 COSC

Seiko NH35

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$820

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