Seiko Cal. 5240 - 183

The 5240-183 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-c2eb6febb74e]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1985

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