Seiko Cal. 5633 - 638

The Seiko 5633-638 represents an important milestone in Seiko's 1994 lineup. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-ca7e18150baa]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1994

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