Side by side

Spinnaker Hull DivervsSeiko 5 Sports Field series

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Hull Diver
SpinnakerHull Diver
MSRP $375
5 Sports Field series
Seiko5 Sports Field series
MSRP $450

At a glance

15 of 29 specs differ
Diameter
Hull Diver42mm
5 Sports Field series39.4mm
Power Reserve
Hull Diver40h
5 Sports Field series41h
Water Resistance
Hull Diver300m
5 Sports Field series100m
MSRP
Hull Diver$375
5 Sports Field series$450

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
42mm
39.4mm
Thickness
15mm
13.6mm
Lug-to-Lug
47.5mm
47.9mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
Curved
Dial Color
Green
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SII NH35A
4R34
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$375
$450

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Hull Diver

The Spinnaker Hull Diver is widely praised for its excellent build quality, featuring a milled clasp, solid links, and a strong anti-reflective coating on its sapphire crystal. Owners highlight its value, with one calling it one of their best affordable watches at $170, and appreciate the dual-part case construction that contributes to a reduced thickness. The blue dial is noted for its attractive play of light, and the screw-down crown is easy to operate. However, the lume is considered average, and some desire a higher beat movement. On balance, owners rate the Spinnaker Hull Diver highly for its robust construction and strong value proposition at its price point.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series offers an accessible explorer-style watch with a 41mm stainless steel case, 100m water resistance, and a Hardlex crystal. The Field GMT model features a caller GMT complication powered by the 4R34 movement, while the standard Field models use the 4R36 with a 41-hour power reserve. Both models include Arabic numerals coated in LumiBrite and a lumed pearl on the bezel. On balance, the Seiko 5 Sports Field GMT is a well-regarded entry-level explorer watch for its price point, despite its office-style GMT function.

From video reviewers

The prominent five-sided GMT hand enhances legibility and adds a sophisticated aesthetic to the watch. The Seiko 5 Sports Field series offers similar functionality to the Explorer 2 at a lower price, making it a valuable option. Reviewers disagree on whether it's a missed opportunity for Seiko to release this model first, with one reviewer implying it would have been a more logical addition to their lineup.

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