Seiko Presage SRPA25 Blue Dial Automatic

IMPORTANT CORRECTION: the reference SRPA25 (retailer references SRPA25J1 / SRPA25K1) is an entry-level Seiko Presage automatic dress watch, not a Prospex Tuna diver. No authoritative source associates this reference with the Tuna line, so the specifications and sections below describe the actual watch that carries this reference. It has a 42 mm polished-and-brushed stainless steel case, a blue sunburst dial with applied silver markers and a date window at 3 o'clock, a Hardlex crystal, an exhibition caseback, and 100 m water resistance. Power comes from the automatic caliber 4R35 (23 jewels, 21,600 vph, hand-windable and hacking). A minority of sellers list the reference under 'Seiko 5' or with no line name, but most retailers and reviewers catalog it within Presage; the reference has no distinct sub-model name beyond its number, and Long Island Watch lists it as discontinued.

The Presage name is not new: according to Teddy Baldassarre's Cocktail Time guide, Seiko first used it in 1960 and then resurrected it in 2016 as part of a broad rebranding of the company's mechanical portfolio. The associated Cocktail Time watches had debuted earlier in the Japanese domestic market in 2010 (with references such as the SARB065) and remained Japan-only until 2017, when they were folded into the international Presage collection.

The SRPA25 belongs to the more accessible, entry-level tier of that Presage range rather than to the named Cocktail Time series, whose international references carry SRPB and SRPE numbers. It is a blue-dial, three-hand automatic with a date, sold under the region suffixes SRPA25J1 and SRPA25K1. Retail attribution is not fully consistent — most sellers and reviewers list it as a Presage, while a minority catalog it under 'Seiko 5' or with no line name at all — and the reference carries no distinct poetic sub-name beyond its number.

Long Island Watch, a US retailer, lists the reference as discontinued, so it is no longer part of Seiko's current catalog. Because sources do not agree on a single, documented release year for the SRPA25 specifically, no production-start date is asserted here beyond its place within the post-2016 Presage buildout.

The SRPA25 runs Seiko's caliber 4R35, an automatic movement introduced around 2011. Caliber Corner lists it at 23 jewels, a 21,600 vph (3 Hz) beat rate, and roughly 40–41 hours of power reserve, with a diameter of 27.4 mm and a thickness of 5.32 mm. It is hand-windable in the clockwise direction and hacks (the seconds hand stops when the crown is pulled), winding bi-directionally through Seiko's Magic Lever system.

On lineage, Caliber Corner records that Seiko describes the 4R35 as developed from the 7S-series and 6R-series designs, and treats it as an upgrade over the widely used 7S26 — the key additions being the hacking and hand-winding functions the 7S26 lacked. The same source notes it is effectively Seiko's branded equivalent of the NH35A supplied to other manufacturers.

The movement is visible through the watch's exhibition caseback. In its review, Millenary Watches observes that the movement 'is not decorated or finished perfectly,' framing that as expected at the watch's sub-$200 positioning rather than as a fault.

In its review, Millenary Watches records a 42 mm stainless steel case that is 13 mm thick, with a polished bezel and polished lugs set against brushed case sides. That diameter is large for a traditional dress watch, though the review presents the piece as versatile rather than oversized.

The reviewer describes the blue sunburst dial — with applied silver-tone hour markers, silver hands, and a date window at 3 o'clock — as 'extremely clean and refined,' and characterizes the overall watch as 'affordable luxury' suited to both dressier and everyday wear.

One practical limitation noted in the same review is legibility in the dark: the dial and hands carry no luminous coating, so the watch prioritizes its clean look over low-light readability.

The watch appears at retail under two closely related references, SRPA25J1 and SRPA25K1, both carrying the same blue sunburst dial and 4R35 movement. The suffix difference follows Seiko's usual regional-distribution convention rather than indicating a different watch.

Configuration details vary between listings. Chronospride and Long Island Watch describe a stainless steel bracelet with a deployment/push-button clasp, while some catalog entries pair the same case with a leather strap; the case is quoted at 42 mm across sources. Sources also disagree on smaller figures such as lug width (listed as both 20 mm and 22 mm), and no reliable lug-to-lug measurement is published, so those values are left out here rather than guessed.

Attribution of the reference itself is the main inconsistency across databases: most list it within Presage, allwatches.org files it simply as a classic Seiko automatic, and at least one seller markets it as a 'Seiko 5.' The specifications common to all listings — 42 mm steel case, blue sunburst dial, caliber 4R35, 100 m water resistance, Hardlex crystal, exhibition caseback — are stable regardless of how the line is labeled.

Long Island Watch, a US retailer, lists the SRPA25 as discontinued and shows no active price for it, so it is not available through normal US Seiko retail channels. Buyers encountering it today are generally looking at remaining new-old-stock, grey-market international sellers such as Chronospride, or the secondary market.

On positioning, Millenary Watches reviewed the watch as an automatic dress piece priced under $200, and concluded it was worth buying for its versatility at that level. No official Seiko US launch MSRP for the reference is published among the sources consulted, and this guide does not assert a specific current street price, since those figures move and were not sourceable to an authoritative outlet.

Anyone shopping the reference should confirm which configuration a listing carries — bracelet versus strap — and verify the J1/K1 suffix and seller warranty, given the reference's discontinued status and inconsistent line labeling across catalogs.