Which is cheaper, the Bremont Altitude 39 Date or the Grand Seiko SBGM221?

At MSRP the Bremont Altitude 39 Date is the cheaper of the two at $4,250, against $5,400 for the Grand Seiko SBGM221 — a $1,150 gap before any retailer discounting.

Which is bigger, the Bremont Altitude 39 Date or the Grand Seiko SBGM221?

The Grand Seiko SBGM221 wears larger at 39.5mm versus 39mm for the Bremont Altitude 39 Date — a 0.5mm difference across the dial.

Which has better water resistance, the Bremont Altitude 39 Date or the Grand Seiko SBGM221?

The Bremont Altitude 39 Date is rated to 100m versus 30m for the Grand Seiko SBGM221.

Which has a longer power reserve, the Bremont Altitude 39 Date or the Grand Seiko SBGM221?

The Grand Seiko SBGM221 carries a 72-hour power reserve against 40 hours on the Bremont Altitude 39 Date.

What movement does the Bremont Altitude 39 Date run compared to the Grand Seiko SBGM221?

Both watches run automatic movements — the Bremont Altitude 39 Date uses the BE-92AE and the Grand Seiko SBGM221 uses the 9S66.

Side by side

Bremont Altitude 39 DatevsGrand Seiko SBGM221

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

Bremont Altitude 39 Date

alt39-dt-ss-si-l-s

MSRP $4,250

Grand Seiko SBGM221

sbgm221g

MSRP $5,400

At a glance

12 of 29 specs differ

Diameter

Altitude 39 Date39mm

SBGM22139.5mm

Power Reserve

Altitude 39 Date40h

SBGM22172h

Water Resistance

Altitude 39 Date100m

SBGM22130m

MSRP

Altitude 39 Date$4,250

SBGM221$5,400

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

Silver

Black

Movement

2 specs

Caliber

BE-92AE

9S66

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$4,250

$5,400

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Altitude 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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