Seiko Cal. 3827 - 564

The Seiko 3827-564 represents an important milestone in Seiko's 1973 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-3c5a0631df07]

Also known as: Helmet, Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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