Seiko Cal. 3870 - 456

This Hand-Winding model from 1973 features a 44mm Titanium case. It features a Cream dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-2c083b3610ab]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1973

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