Seiko Cal. 5661 - 357

The Seiko 5661-357 represents an important milestone in Seiko's 1997 lineup. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-1cf7f251aad9]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1997

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