Seiko Cal. 4513 - 666

This Spring Drive model from 1977 features a 46mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-ab4378522c78]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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