Watch Catalog

Seiko 5 Sports SRPJ20

Green dial, 42.5 mm, 4R36 automatic. Discontinued.

  • 4R36
  • 42.5 × 46.0 mm
  • 100 m
  • Hardlex
  • $420
42.5 mm46.0 mm22 mm13.4 mmside
Case drawn to scale from Seiko's published dimensions: top view with lugs, and side view.

Specifications

Movement
Seiko 4R36, automatic with hand winding
Case diameter
42.5 mm
Lug-to-lug
46.0 mm
Thickness
13.4 mm
Lug width
22 mm
Case
Stainless steel
Crystal
Hardlex
Water resistance
100 m
Lume
LumiBrite on hands and index(es)
Dial
Green
Features
LIMITED EDITION on the case back, Screw case back, See-through case back, Serial number engraved on the case back, Three-fold clasp with secure lock, Unidirectional rotating bezel
Series
Seiko 5 Sports, SKX series
Style
SKX Sense Style (2019 lineup)

Same case, other dials

Identical case, movement and dimensions; only the dial, bezel or finish differs.

All 107 in this case

Other watches on the 4R36

Every 4R36 watch

Questions

What movement is in the Seiko SRPJ20?

The SRPJ20 runs on the Seiko 4R36, an automatic movement that can also be wound by hand. See the 4R36 page for its specs and every watch built on it.

Does the Seiko SRPJ20 have a sapphire crystal?

No. The SRPJ20 has a Hardlex crystal. Hardlex is Seiko's hardened mineral glass: tougher than plain mineral glass, softer than sapphire.

How water resistant is the Seiko SRPJ20?

100 m (10 bar). That covers swimming and snorkelling; it is not a certified diver's watch unless Seiko says so.

What is the lug width of the Seiko SRPJ20?

22 mm. Any 22 mm strap fits.