Seiko Cal. 6645 - 633

The Seiko 6645-633 represents an important milestone in Seiko's 1989 lineup. It features a Cream dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-0db909218c07]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

34j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1989

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