Which is cheaper, the Orient AC0Q-40 RA-AC0Q05P10B or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Orient AC0Q-40 RA-AC0Q05P10B is the cheaper of the two at $355, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,445 gap before any retailer discounting.

Which is bigger, the Orient AC0Q-40 RA-AC0Q05P10B or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Orient AC0Q-40 RA-AC0Q05P10B wears larger at 39.9mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 0.4mm difference across the dial.

Which has a longer power reserve, the Orient AC0Q-40 RA-AC0Q05P10B or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch carries a 45-hour power reserve against 40 hours on the Orient AC0Q-40 RA-AC0Q05P10B.

What movement does the Orient AC0Q-40 RA-AC0Q05P10B run compared to the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Orient AC0Q-40 RA-AC0Q05P10B uses the F6722 and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37.

Side by side

Orient AC0Q-40 RA-AC0Q05P10BvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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

Orient AC0Q-40 RA-AC0Q05P10B

ra-ac0q05p10b

MSRP $355

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

sje117j1

MSRP $2,800

At a glance

13 of 29 specs differ

Diameter

AC0Q-40 RA-AC0Q05P10B39.9mm

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm

Power Reserve

AC0Q-40 RA-AC0Q05P10B40h

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Water Resistance

AC0Q-40 RA-AC0Q05P10B200m

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

MSRP

AC0Q-40 RA-AC0Q05P10B$355

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

3 specs

Diameter

39.9mm

39.5mm

Thickness

12.8mm

12.3mm

Lug-to-Lug

46.5mm

47.2mm

Crystal & Dial

4 specs

Crystal Shape

Flat

Box

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Orange

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

5 specs

Caliber

F6722

6L37

Beat Rate

21,600 vph

28,800 vph

Power Reserve

40h

45h

Jewels

Complications

Date

None

Pricing

1 specs

MSRP

$355

$2,800

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