Seiko Cal. 5634 - 370

The Seiko 5634-370 represents an important milestone in Seiko's 1990 lineup. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-85be52f086e0]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1990

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