Seiko Cal. 4536 - 987

The Seiko 4536-987 represents an important milestone in Seiko's 1985 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-877264868ead]

Also known as: Sumo, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1985

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