Seiko Cal. 5257 - 370

This Hand-Winding model from 1999 features a 46mm Titanium case. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-7aefaa044408]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1999

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