Seiko Cal. 5645 - 178

Released in 1981, the Cal. 5645 with design code 178 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-f3c800c22233]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1981

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