Seiko Cal. 5278 - 437

The Seiko 5278-437 represents an important milestone in Seiko's 1973 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-45c6531cdd3b]

Also known as: Pogue, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1973

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