Seiko Cal. 4437 - 840

The Seiko 4437-840 represents an important milestone in Seiko's 1999 lineup. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-66fe108aeaf1]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1999

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