Seiko Cal. 6688 - 538

The Seiko 6688-538 represents an important milestone in Seiko's 1980 lineup. It features a Cream dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-198b2f010b50]

Also known as: Monster, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1980

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