Seiko Cal. 4536 - 138

The 4536-138 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4536 caliber with 22j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-4c424fc09296]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1985

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