Seiko Cal. 5633 - 391

The Seiko 5633-391 represents an important milestone in Seiko's 1988 lineup. It features a Cream dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-0d671ac367df]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1988

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