Seiko Cal. 5633 - 652

The Seiko 5633-652 represents an important milestone in Seiko's 1991 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-15b32b3af101]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1991

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