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Casio G-Shock Master Of G - Air Alarm World Time Black Dial Watch GR-B300-1A
Casio

Casio G-Shock Master Of G - Air Alarm World Time Black Dial Watch GR-B300-1A

Model: GR-B300-1A

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Description

Casio GR-B300-1A details

Black resin case and strap. Black resin bezel. Black dial with silver-tone hands and index-Arabic numeral hour markers. Minute markers around the outer rim. Dial Type: Analog. Date display between 4 and 5 o'clock position. Solar movement. Scratch resistant mineral crystal. Solid case back. Round case shape, case size: 59 x 54.7 mm, case thickness: 15.7 mm. Buckle clasp. Water resistant at 200 meters / 660 feet. Functions: date, hour, minute, second, world time, timer, full auto-calendar (to year 2099), stopwatch, alarm. G-shock Series. Sport watch style. Watch label: Japan Movt. Item Variations: GR-B300-1ADR. Casio G-Shock Master Of G - Air Alarm World Time Black Dial Watch GR-B300-1A.

The lowest new USD price we found for the Casio GR-B300-1A is $229.00 at Jomashop, checked 2 Nov 2026, 11:22 UTC, across 1 retailer in stock when checked. The lowest price recorded in the last 30 days is $229.00, at Jomashop on 20 Oct 2026, 10:46 UTC.

Specifications

Case diameter
54
Case material
Resin
Case thickness
15.7 mm
Bracelet
Resin
Crystal
Scratch Resistant Mineral
Clasp
Buckle
Water resistance
200 meters / 660 feet
Dial
Black
Calendar
Date display between 4 and 5 o'clock position
Functions
Date, Hour, Minute, Second, World time, Timer, Full auto-calendar (to year 2099), Stopwatch, Alarm
Hands
Silver-tone
Case back
Solid
Bezel color
Black

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Compare current offers

1 current offer
Jomashop$229.00
Lowest price

In stock

$229.00

Shipping not supplied · Checked 2 Nov 2026, 11:22 UTC

Shop at Jomashop →

Price history

Lowest observed$229.00
Observed price history for Casio G-Shock Master Of G - Air Alarm World Time Black Dial Watch GR-B300-1A Step chart of 6 validated retailer price observations. Each listing's last observed price is carried forward from its first observation to the chart's end. Dots mark actual observations. The horizontal axis is observation date and the vertical axis is listed price in USD. $245.00$240.00$235.00$230.00$225.00$220.00$215.00 Sep 12Sep 29Oct 16Nov 2 Jomashop: $229.00, 12 Sept 2026, 13:21 UTCJomashop: $229.00, 15 Sept 2026, 13:52 UTCJomashop: $229.00, 18 Sept 2026, 14:03 UTCJomashop: $229.00, 21 Sept 2026, 14:19 UTCJomashop: $229.00, 20 Oct 2026, 10:46 UTCJomashop: $229.00, 2 Nov 2026, 11:22 UTC Observation date Listed price (USD)
  • Jomashop$229.00 · 6 observations

Price comparison at a glance

Lowest current listing
$229.00
Jomashop · In stock
Checked 2 Nov 2026, 11:22 UTC
Retailers compared
1
Compared with the next retailer
No other recent in-stock offer
Latest retailer check
2 Nov 2026, 11:22 UTC

Lowest recorded price in the last 30 days: $229.00 at Jomashop on 20 Oct 2026, 10:46 UTC. Prices recorded on 2 days, from 20 Oct 2026, 10:46 UTC to 2 Nov 2026, 11:22 UTC.

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