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Grand Seiko

Grand Seiko Grand Seiko SLGA028 SLGA028

The Grand Seiko Grand Seiko SLGA028 (reference SLGA028) is a 40 mm 18k yellow gold watch with a champagne dial. It runs on the spring Drive caliber 9RA2. It was introduced in 2025.

Specifications

Case

Reference
SLGA028
Collection
Heritage
Case size
40 mm
Case material
18k yellow gold

Dial and bezel

Dial
Champagne

Movement

Movement
Spring Drive
Caliber
9RA2

Production

Production
2025 – today (limited)

Dial versions

This reference was made with these dials and finishes.

  • SLGA028 Champagne

    Boutique-limited

How it compares within the Heritage family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
SLGA028 (This watch)40 mm18k yellow goldChampagne9RA22025–
SBGA21141 mmHigh-intensity titaniumWhite Snowflake pattern9R652017–
SBGA41340 mmHigh-intensity titaniumPink (Shunbun / hana-ikada)9R652020–
SBGH35140 mmEver-Brilliant SteelGreen9S852025–
SBGH35340 mmEver-Brilliant SteelSilver9S852025–
SBGH36838 mm18k rose goldSilver9S852025–
SLGW00738.6 mmStainless steelNavy9SA42025–
STGK03130 mmStainless steelLight pink9S272025–
STGK03330 mmStainless steelSilver9S272025–

About the Heritage family

Heritage is Grand Seiko's collection rooted in its classic 1960s designs, especially the 44GS and 62GS. It keeps the sharp facets, flat polished surfaces and clean dials of the Grand Seiko Style, in a wide range of sizes and movements.

The catalog includes mechanical models with 9S and 9SA calibers, Spring Drive with 9R and 9RA calibers, and quartz with the 9F, in steel, Ever-Brilliant Steel, high-intensity titanium and gold. With so many dial variations and limited editions, confirm the exact reference, and check the case edges for polishing.

Quick answers

What size is the Grand Seiko Grand Seiko SLGA028 SLGA028?
The Grand Seiko Grand Seiko SLGA028 SLGA028 has a 40 mm case.
What movement does the Grand Seiko Grand Seiko SLGA028 SLGA028 use?
It uses the spring drive caliber 9RA2.
Is the Grand Seiko Grand Seiko SLGA028 SLGA028 still in production?
Limited.
When did the Grand Seiko Grand Seiko SLGA028 SLGA028 come out?
It was introduced in 2025.
What is the Grand Seiko Grand Seiko SLGA028 SLGA028 made of?
The case is 18k yellow gold.

Catalog facts checked October 2026.