What movement does the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic run compared to the Grand Seiko SBGW306?

The Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic runs a automatic caliber (Sellita SW220-1), while the Grand Seiko SBGW306 runs a manual (9S64).

Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsGrand Seiko SBGW306

Q: Which is cheaper, the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic or the Grand Seiko SBGW306?

At MSRP the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic is the cheaper of the two at $3,250, against $17,900 for the Grand Seiko SBGW306 — a $14,650 gap before any retailer discounting.

Q: Which has a longer power reserve, the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic or the Grand Seiko SBGW306?

The Grand Seiko SBGW306 carries a 72-hour power reserve against 40 hours on the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic.

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

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

46mm-anthracite-large-divers-automatic-jdd

MSRP $3,250

Grand Seiko SBGW306

sbgw306j

MSRP $17,900

At a glance

13 of 29 specs differ

Diameter

JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm

SBGW30636.5mm

Power Reserve

JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h

SBGW30672h

Water Resistance

JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m

SBGW306100m

MSRP

JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

SBGW306$17,900

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Anthracite

Black

Movement

3 specs

Caliber

Sellita SW220-1

9S64

Type

Automatic

Manual

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$3,250

$17,900

Follow this matchup

Get a note when Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic vs Grand Seiko SBGW306 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring