Seiko Cal. 0731 - 703

The 0731-703 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-db824bc2a321]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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