Seiko Cal. 4480 - 640

This Spring Drive model from 1992 features a 41mm Titanium case. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-57780a6444c1]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1992

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