Which is cheaper, the Boldr Blastoise or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Boldr Blastoise is the cheaper of the two at $449, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $2,351 gap before any retailer discounting.

Which is bigger, the Boldr Blastoise or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Boldr Blastoise wears larger at 40mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 0.5mm difference across the dial.

Which has a longer power reserve, the Boldr Blastoise 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 Boldr Blastoise.

What movement does the Boldr Blastoise run compared to the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Boldr Blastoise uses the Seiko (SII) NH37 and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the 6L37.

Side by side

Boldr BlastoisevsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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

Boldr Blastoise

blastoise

MSRP $449

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

sje117j1

MSRP $2,800

At a glance

11 of 29 specs differ

Diameter

Blastoise40mm

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

Power Reserve

Blastoise40h

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h

Water Resistance

Blastoise200m

Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m

MSRP

Blastoise$449

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

Full specifications

Case

3 specs

Diameter

40mm

39.5mm

Thickness

12mm

12.3mm

Lug-to-Lug

49.5mm

47.2mm

Crystal & Dial

4 specs

Crystal Shape

Flat

Box

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Blastoise

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko (SII) NH37

6L37

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$449

$2,800

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