Seiko Cal. 5644 - 911

The Seiko 5644-911 represents an important milestone in Seiko's 1991 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-7879749efe0d]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1991

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