Seiko Cal. 6391 - 975

This Solar model from 1987 features a 44mm Titanium case. It features a Cream dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-13f5db0af262]

Also known as: Helmet, UFO

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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