Seiko Cal. 4552 - 661

The Seiko 4552-661 represents an important milestone in Seiko's 1988 lineup. It features a Green dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-13970cfacdfc]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1988

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