Seiko Cal. 4457 - 360

The 4457-360 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-fcbbfd5bdef1]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1971

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