Seiko Unveils Two Limited-Edition Prospex Land Models: SPB411 and SLA071

Dive-watch-esque case with a solid metal bezel.

While Seiko continues to introduce a variety of new dive watch models, the brand has recently turned its attention to a different lineup for a refreshing change. The latest offerings from the Japanese watchmaker consist of two Prospex wristwatches designed for land-based adventures, rather than sea exploration: the Land Mechanical GMT Limited Edition SPB411 and the Landmaster 30th Anniversary Limited Edition SLA071. What distinguishes these watches is their all-metal bezels, a departure from the more common aluminum or ceramic bezel inserts typically found on dive watches.

Land Mechanical GMT Limited Edition SPB411

First up is the SPB411, a recreation of the Navigator Timer ref. 6117-8000 from 1968, which happened to be the brand’s first GMT watch with a rotating bezel. Notably, the SPB411 is a faithful reissue, maintaining the dimensions and design of the original.

 

The new SPB411 features a modest 38.5 mm-wide case, similar to the vintage original’s 38 mm. The dial also closely adheres to the original in both general design and specific details. It adopts the grey “sun-ray” dial, as well as the baton indices and hands, including the distinctive red GMT hand with stubby, equilateral triangle tip. Even the lettering on the bezel remains true to the vintage original.

 

The only difference lies in the dial printing, where it lacks the Navigator Timer branding and other details. However, fortunately, the latest version does not overwhelm the dial with excessive logos, such as the Prospex logo, preserving the restrained and retro look and feel of the dial. 

It’s worth noting the bracelet as well. The original Navigator Timer offered a range of bracelet choices, one of which was a five-link bracelet. The latest model takes cues from this design but adds a modern twist with a more angular and faceted profile, departing from the rounded links of the original. This update results in an appealing look that harmonizes with the watch’s robust aesthetic.

 

Inside the watch is the cal. 6R54, which builds upon the cal. 6R35 by adding a GMT hand. As a result, it maintains a 72-hour power reserve, but the local hour hand cannot be set in one-hour increments. Instead, the 24-hour hand can be adjusted in one-hour increments.

Landmaster 30th Anniversary Limited Edition SLA071

Moving on to a higher-end model, the SLA071 is designed to commemorate the 30th anniversary of the Landmaster lineup. While it shares the broad strokes of the original Landmaster, such as the case style and compass bezel, the similarities end there.

 

Instead, the new SLA071 has been upgraded with a more nuanced dial and movement. The dial displays a gradient blue hue that deepens towards the edges, and it also incorporates a subtle pattern that adds depth to its visual appeal. The blue tone is nicely complemented by the inclusion of a gilt logo and seconds hand, which was not part of the original design.

Noteworthy is the SLA071’s construction, which, despite its somewhat bulky 42mm width, is made lightweight through the use of titanium for both the case and bracelet, an improvement over the original steel construction.

 

Lastly, the movement inside is the cal. 8L35, essentially a simplified version of the earlier Grand Seiko 9S movement, specifically the cal. 9S55. Consequently, it offers a 50-hour power reserve, which falls slightly short of the modern norm of three days. However, this does not detract from the fact that it is a robustly engineered movement.

Seiko Prospex Land Mechanical GMT Limited Edition SPB411 specs and price

Movement: 6R54; automatic; 72 hours power reserve
Functions: Hours, minutes, seconds, GMT, and date
Case: 38.5 mm x 12.6 mm; steel; water resistant to 100 m
Strap: Steel bracelet
Availability: At Seiko’s boutiques and retailers
Limited edition: 4,000 pieces
Price: USD 1,500

Seiko Prospex Land Landmaster 30th Anniversary Limited Edition SLA071 specs and price

Movement: 8L35; automatic; 50 hours power reserve
Functions: Hours, minutes, seconds, and date
Case: 42 mm x 12.7 mm; titanium; water resistant to 200 m
Strap: Titanium bracelet
Availability: At Seiko’s boutiques and retailers
Limited edition: 1,000 pieces
Price: USD 2,600

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