Prospex 1968 Heritage Diver's GMT 42mm
SPB385
How it wears
Wears true to its 42 mm case size
Seiko Prospex 1968 Heritage Diver's GMT 42mm measures 48.6 mm lug-to-lug on a 42 mm case, a lug-to-lug ratio of 1.16 against a database median of 1.18. That span is longer than 72% of the 7,413 watches in this database and longer than 80% of the 390 Seiko watches listed.
A flat wrist width of 54 mm (2.13 in) or more keeps it in the balanced range, and from 65 mm (2.56 in) it starts to look compact. Below 48.6 mm (1.91 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 12.9 mm thick it sits within the typical range, thicker than 60% of the watches with a listed thickness.
Wrist fit analyzer
Fit reference
Sits comfortably within the wrist width for most wearers.
Sources
- https://www.hodinkee.com/articles/seiko-announces-more-dive-gmts-are-coming-our-way-with-the-prospex-gmt-spb381-spb383-and-spb385
Hodinkee reports 48.6mm lug-to-lug, 42mm case size/width, 12.9mm thickness for Seiko Prospex 1968 Heritage Diver's GMT in “Introducing: Seiko Announces More Dive-GMTs With The Prospex GMT SPB381, SPB383, and SPB385.”
- https://monochrome-watches.com/how-good-is-seiko-first-mechanical-prospex-diver-gmt-prospex-1968-diver-gmt-save-the-ocean-spb385-hands-on-review-price/
MONOCHROME reports 48.6mm lug-to-lug, 42mm case size/width for Seiko Prospex 1968 Heritage Diver's GMT in “How Good Is Seiko’s First Mechanical Prospex GMT Diver, And Specifically The Save The Ocean SPB385?.”
- https://monochrome-watches.com/seiko-prospex-1968-heritage-diver-gmt-300m-spb519-micro-adjust-clasp-introducing-price/
MONOCHROME reports 49mm lug-to-lug, 42mm case size/width for Seiko Prospex 1968 Heritage Diver's GMT in “Seiko Upgrades its Prospex Diver GMT with more WR and a Micro-Adjust Clasp.” The article's explicit planar case length/top-to-bottom dimension is stored as the lug-to-lug equivalent.
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