Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Baby Alpinist?

At MSRP the Seiko Baby Alpinist is the cheaper of the two at $725, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,280 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Baby Alpinist?

The Serica Ref. 5330 Diving Chronometer Date wears larger at 39mm versus 38mm for the Seiko Baby Alpinist — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Baby Alpinist?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 20m for the Seiko Baby Alpinist.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Baby Alpinist?

The Seiko Baby Alpinist carries a 70-hour power reserve against 42 hours on the Serica Ref. 5330 Diving Chronometer Date.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Seiko Baby Alpinist?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Seiko Baby Alpinist uses the 6R35.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSeiko Baby Alpinist

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

Serica Ref. 5330 Diving Chronometer Date

5330-chronometre-plongee-date

MSRP $2,005

Seiko Baby Alpinist

spb155j1

MSRP $725

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Baby Alpinist38mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Baby Alpinist70h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Baby Alpinist200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Baby Alpinist$725

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

SoProd M100

6R35

Power Reserve

42h

70h

Jewels

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$725

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