The Seiko 5 Sports Field Series HDB008K1 watch features a rugged stainless steel case paired with a distinctive khaki green dial and durable nylon strap. Powered by the automatic Calibre 4R36 movement with manual winding capability, it delivers reliable timekeeping with a 41-hour power reserve.

Designed for outdoor adventure and daily wear, this timepiece includes a rotating compass bezel, curved Hardlex crystal, and LumiBrite treatment on the hands, indexes, and bezel for enhanced visibility in low-light conditions.

Additional features include a day-date display, stop-second hand function, see-through screw case back, and water resistance up to 100 metres.

Key Features

Brand	Seiko
Collection	Seiko 5 Sports
Series	Field Series
Model	HDB008K1
Gender	Men's
Movement	Automatic with manual winding
Calibre	4R36
Power Reserve	Approximately 41 hours
Jewels	24
Case Material	Stainless steel
Case Diameter	41.0 mm
Case Thickness	13.2 mm
Lug-to-Lug	48.5 mm
Lug Width	20 mm
Crystal	Curved Hardlex
Dial Colour	Khaki green
LumiBrite	Hands, indexes and bezel
Bezel	Rotating compass bezel
Strap Material	Nylon
Water Resistance	100 m / 10 bar
Weight	85 g
Magnetic Resistance	4,800 A/m
Case Back	See-through and screw case back
Functions	Day/date display, stop-second hand

Highlights

Brand: Seiko
Collection: Seiko 5 Sports
Series: Field Series
Model: HDB008K1
Movement: Automatic with manual winding
Calibre: 4R36
Power Reserve: Approximately 41 hours
Jewels: 24
Functions: Day/date display, stop-second hand
Case Material: Stainless steel
Case Diameter: 41.0 mm
Case Thickness: 13.2 mm
Lug-to-Lug: 48.5 mm
Lug Width: 20 mm
Crystal: Curved Hardlex
Dial Colour: Khaki green
LumiBrite: Hands, indexes and bezel
Bezel: Rotating compass bezel
Strap: Nylon
Water Resistance: 100 metres / 10 bar
Weight: Approximately 85 g
Magnetic Resistance: 4,800 A/m
Case Back: See-through and screw case back
Clasp: Three-fold clasp with secure lock

Frequently asked questions

What movement powers this watch?

It is powered by the Seiko automatic Calibre 4R36 movement, which features manual winding and a power reserve of approximately 41 hours.

What is the water resistance rating?

The watch offers a water resistance rating of 100 metres (10 bar).

What type of crystal is used on the dial?

The watch features a curved Hardlex crystal.

What are the case dimensions?

The stainless steel case measures 41.0 mm in diameter, 13.2 mm in thickness, and 48.5 mm lug-to-lug.

Does the watch have luminous elements for night viewing?

Yes, LumiBrite is applied to the hands, indexes, and rotating compass bezel for visibility in the dark.

What strap comes with this model?

This model comes fitted with a durable khaki green nylon strap with a 20 mm lug width.

Seiko 5 Sports Field Series Green Dial Automatic Men's Watch