Seiko Cal. 5243 - 671

This Spring Drive model from 1986 features a 40mm Titanium case. Powered by the 5243 caliber with 18j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-37a71b4132de]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1986

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