Seiko Cal. 3874 - 633

The Seiko 3874-633 represents an important milestone in Seiko's 1985 lineup. It features a White dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-ebc29f5593a1]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1985

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