Grand Seiko Evolution 9 Spring Drive 5 Days 40mm
SLGA021
How it wears
Wears true to its 40 mm case size
Grand Seiko Evolution 9 Spring Drive 5 Days 40mm measures 47.9 mm lug-to-lug on a 40 mm case, a lug-to-lug ratio of 1.20 against a database median of 1.18. That span is longer than 62% of the 8,054 watches in this database and longer than 72% of the 232 Grand Seiko watches listed.
A flat wrist width of 54 mm (2.13 in) or more keeps it in the balanced range, and from 64 mm (2.52 in) it starts to look compact. Below 47.9 mm (1.89 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.
At 11.8 mm thick it sits within the typical range, thicker than 42% of the watches with a listed thickness.
Wrist fit analyzer
Fit reference
Sits comfortably within the wrist width for most wearers.
Sources
- https://www.grand-seiko.com/us-en/collections/slga021g
Manufacturer page: 40.0 mm diameter, 47.9 mm lug-to-lug, 11.8 mm thickness, and 22 mm band width.
- https://monochrome-watches.com/grand-seiko-spring-drive-slga007-lake-suwa-evolution-9-limited-edition-price-review/
MONOCHROME reports 47.6mm lug-to-lug, 40mm case size/width for Grand Seiko Spring Drive 5 Days in “The Grand Seiko Spring Drive SLGA007 Lake Suwa is all About its Textured Blue Dial.”
- https://monochrome-watches.com/grand-seiko-updates-its-classic-evo9-collection-models-with-ufa-calibre-and-new-bracelet/
MONOCHROME reports 48mm lug-to-lug, 40mm case size/width for Grand Seiko Spring Drive 5 Days in “Grand Seiko Updates its Classic Evo9 Collection Models with Spring Drive UFA Calibre and a New Bracelet.”
- https://www.grand-seiko.com/global-en/collections/slga021g
Official Grand Seiko global product page lists SLGA021 with case size Diameter 40.0mm Lug-to-lug 47.9mm Thickness 11.8mm, band width 22 mm (stored as lug width).
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