Seiko Cal. 5289 - 437

The Seiko 5289-437 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-9e5ee1ff5318]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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