The Seiko 5 Sports SSK023 offers the same trusted GMT functionality found in its larger siblings but in a more compact and wearable 39mm case size. With a sleek black dial, curved Hardlex crystal, and Seiko’s durable stainless steel build, this watch delivers both versatility and everyday reliability. Powered by the Caliber 4R34 automatic movement, it combines dual-time practicality with classic Seiko 5 Sports toughness.
Caliber 4R34 – Automatic with manual winding
Power Reserve: ~41 hours
Jewels: 24
Functions:
GMT hand for dual-time display
Stop second hand function
Date display
Water Resistance: 100m (10 bar)
Magnetic Resistance: 4,800 A/m
Warranty: 3 years
Case Material: Stainless steel
Case Size: 39.4 mm diameter × 13.6 mm thickness
Lug-to-lug: 47.9 mm
Lug Width: 20 mm
Case Back: See-through & screw case back
Weight: 147 g
Dial Color: Black
Crystal: Curved Hardlex
LumiBrite on hands and indices for easy readability in low light
Bracelet: Stainless steel
Clasp: Three-fold clasp with push-button release & secure lock
Compact and robust 39mm stainless steel case
Hardlex crystal with curved finish for style and protection
100m water resistance + magnetic resistance for reliable everyday wear
⚡ In short: The Seiko 5 Sports SSK023 GMT Automatic delivers Seiko’s iconic GMT design in a slimmer, more compact case, perfect for those who prefer a versatile daily watch that still carries bold Seiko DNA.